What Are Israel’s Defenses Against Iran?

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Iranian ballistic missiles struck at least seven sites around Tel Aviv on Friday night, injuring at least 22 people, according to Israeli military officials and firefighters. Video from Tel Aviv showed at least one large explosion on the ground from an apparent missile strike and at least one building on fire.

Explosions were also heard over Jerusalem as missiles streaked overhead, part of Iran’s retaliatory campaign after waves of Israeli strikes that devastated Tehran’s military chain of command and hit critical nuclear facilities.

Rafael Grossi, the head of the United Nations’ nuclear watchdog, told the U.N. Security Council that Israel’s strike Friday on Iran’s nuclear facility near Natanz had destroyed the aboveground enrichment plant, causing chemical and radiological contamination.

In Tel Aviv, Israeli television showed images of a damaged building and many mangled and burned cars from one of the impact sites in the area. Three hospitals in the area said they had received about 20 wounded people among them, describing their injuries as light and moderate. Fire officials said several people had been rescued from inside buildings struck by Iranian missiles.

Israel Katz, Israel’s defense minister, said in a statement that Iran “crossed a red line” by firing missiles at populated areas in Israel, warning that “the Ayatollah regime would pay a very heavy price” for its actions.

Some of the explosions above Israel appeared to be from interceptions of Iran’s missiles by Israel’s Iron Dome defensive system. Tracer fire from the ground could be seen streaking above the cities and sirens.

An American official, who requested anonymity to discuss an ongoing operation, said that the U.S. military was helping Israel intercept some of the ballistic missiles. The official said that American military assets, already in the eastern Mediterranean to help defend American troops in the region, were used to intercept the missiles.

Early reports from both Iran and Israel were difficult to immediately verify, as both countries claimed that their militaries had inflicted significant damage in the escalating conflict.

Iran’s Revolutionary Guards Corps said in a statement that it had struck dozens of targets in Israel “forcefully and with precision,” including military and defense sites, in response to Israel’s attacks on Iran that killed senior commanders, nuclear scientists and civilians. The New York Times could not independently verify that claim.

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Iran’s supreme leader, Ayatollah Ali Khamenei, said earlier that Israel “should anticipate a harsh punishment” for its daylong assault, as some of Israel’s European allies expressed worry that Israel was ratcheting up its military conflict with Iran.

Prime Minister Benjamin Netanyahu of Israel has described the sustained assault as necessary to prevent Iran from getting a nuclear weapon, which Israel views as an existential threat. Israel’s military said on Friday that it had hit 200 sites so far, including nuclear sites in the cities of Natanz and Isfahan.

In a video statement on Friday night, Mr. Netanyahu urged the people of Iran to rise up against their leaders. “The regime does not know what hit them, or what will hit them. It has never been weaker,” Netanyahu said.

Here’s what else to know:

  • Top Iranians killed: Two high-ranking military commanders, Mohammad Bagheri and Gen. Hossein Salami, were killed, Iran said, as was Ali Shamkhani, a politician who was overseeing the nuclear talks with the United States, officials said. Two senior Iranian government officials said Gen. Ismail Ghaani, the Quds Forces commander in charge of proxies in the region, was among those who had been killed. Read more ›

  • What was hit:Mr. Grossi said the underground halls at Natanz were not hit, though damage to the power supply to the halls may have damaged the centrifuges housed there. He said the Iranian authorities had reported strikes on nuclear facilities in Fordo and Isfahan as well. Read more ›

  • Trump’s reaction: In Washington, President Trump, whose administration had been holding nuclear talks with Iranian officials, urged Tehran to strike a deal to curb its nuclear program or risk “even more brutal” attacks. Mr. Trump said that Tehran “must make a deal, before there is nothing left.” But Iran said it would not attend talks scheduled for this weekend in Oman.

  • Iran’s proxies: Few analysts expect Iran’s network of armed proxies to respond meaningfully to the attack, illustrating how degraded the groups have become. Since the Hamas-led October 2023 attack on Israel, the Israeli security services have launched operations that have severely weakened Hamas in Gaza and Hezbollah in Lebanon. The Assad dictatorship in Syria, a key ally of Iran, collapsed last December. Read more ›

Natan Odenheimer

At least 40 people have been wounded in Tel Aviv and the surrounding area, according to a tally from three hospitals. Most patients are moderately injured, but a few are in critical condition.

Lara JakesAaron Boxerman

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Israel’s Iron Dome defense system over Ashkelon, Israel, in October, following a launch of missiles from Iran.Credit...Amir Cohen/Reuters

Iran launched retaliatory strikes against Israel on Friday, less than a day after Israel’s military carried out a mass attack targeting Tehran’s nuclear program and top commanders.

With billions of dollars worth of sophisticated and multilayered aerial defenses, Israel has long been prepared for a full-scale assault by Iranian missiles and drones.

Those layers of protection are now being put to the test, with Israeli authorities confirming that missiles hit multiple sites. In previous exchanges between the two countries, Iran mostly targeted Israeli military bases. But the scope of Israel’s assault, which devastated Iran’s military chain of command, could prompt a much wider Iranian counterstrike.

“One of the most effective tactics to inflict maximum damage on the Israeli home front would be to overwhelm its air defense systems,” said Joe Truzman, a senior analyst at the Foundation for Defense of Democracies’s Long War Journal.

He said Israel will have “only a brief window to detect, assess, and respond to this looming threat.”

Here’s what to know about Israel’s defenses against Iranian attack.

Israel’s anti-missile systems include:

  • Iron Dome: Israel’s best-known air defense system fires interceptors to take down short-range rockets.

  • David’s Sling: This stationary weapon can shoot down short- and medium-range ballistic and cruise missiles. It has a range of about 185 miles. Like the Iron Dome, it is a “hit-to-kill” weapon that takes down targets by flying into them.

  • Arrow 2 and 3: These ground-based mobile launchers fire fragmentation warheads packed with explosives that blow up near incoming missiles. The Arrow 2 can intercept targets high in the atmosphere, at an altitude of about 30 miles and a range of about 60 miles. The Arrow 3 can go beyond the atmosphere into space, with a range of up to 1,500 miles. It is one of Israel’s most advanced defenses.

  • Iron Beam: This high-powered laser was developed to intercept rockets, drones and anti-tank missiles. It was first deployed in the field after Hamas’s 2023 attack on southern Israel, which prompted wars in Gaza and Lebanon.

One of the most serious threats posed by Iran comes from its heavyweight ballistic missiles, which fly at the edge of space at many times the speed of sound. They can cross the roughly 1,000 miles between Iran and Israel in just a few minutes.

Antimissile systems like Arrow 3, which have a limited supply of expensive interceptors, do not always hit their ballistic missile targets.

Last October, analysts at the Middlebury Institute of International Studies at Monterey, in California, concluded that Israel had run low on interceptors, after about 30 Iranian ballistic missiles landed near a military base in southern Israel unscathed. Last month, a Houthi missile launched from Yemen evaded Israeli and American air defense systems to strike near Ben Gurion Airport in Tel Aviv.

It can take years to produce enough missile interceptors to keep them reliably stockpiled, and Israel “has been expending them,” said Tom Karako, a missile defense expert at the Center for Strategic and International Studies in Washington.

Another problem for Israel will be tracking and destroying unmanned drones, which fly low and slow, making them much harder to detect. In the past, Israel has scrambled fighter jets to shoot down drones beyond Israel’s borders; failing that, Israeli forces have used the Iron Dome system, which is most effective against short-range rockets.

The United States is also helping to defend Israel’s skies.

Days after Iran fired a barrage of about 180 ballistic missiles at Israel in October, the United States sent a Terminal High Altitude Area Defense system, or THAAD, to bolster Israeli defenses. The THAAD is a mobile surface-to-air interceptor designed to shoot down incoming ballistic missiles, which its radar can detect from more than 1,800 miles away. THAAD can strike incoming targets both within the Earth’s atmosphere and above it.

The Trump administration sent Israel a second THAAD battery earlier this spring, said Yehoshua Kalisky, a military technology expert at the Institute for National Security Studies in Tel Aviv.

Meanwhile, the U.S. Navy has deployed the aircraft carrier Carl Vinson to the Arabian Sea; there are more than 60 aircraft aboard the Vinson, including advanced F-35 stealth strike fighters. The American military also has several dozen attack and fighter jets deployed in the Middle East, which were used extensively to defend Israel from Iranian strikes last year.

Neighboring Jordan has said it is continuing to intercept hostile missiles and aircraft entering its airspace, protecting not only its own territory but also serving as a de facto layer of security for Israel.

Iran keeps its military stockpiles and capabilities secret, so experts said it is impossible to know how extended or powerful its airstrikes could be.

Mr. Truzman said Iran could also amass support from its regional proxy militias, in Lebanon, Iraq and Yemen. On Friday, sirens were triggered in Israel after an incoming ballistic missile was detected from Yemen, but it reportedly landed in an uninhabited area in the West Bank.

Mr. Karako and Mr. Kalisky said Israel likely destroyed many of Iran’s weapons systems with its strikes on Friday.

“It will take the Iranians sometimes to organize the missile force again,” Mr. Kalisky said. “We have several layers of defense, so I don’t worry.”

Gabby Sobelman

Israeli hospitals are treating dozens of people critically injured in the Iranian missile attack, including one woman at Beilinson Hospital who is “fighting for her life,” the hospital said in a statement.

Pranav Baskar

Rafael Grossi, the head of the International Atomic Energy Agency, told the United Nations Security Council on Friday that Israel’s strike on the Iranian nuclear facility near Natanz had destroyed the above-ground enrichment plant, causing chemical and radiological contamination. The underground halls at Natanz were not hit, Grossi said, though damage to the power supply to the halls may have damaged the centrifuges housed there. He said the Iranian authorities had reported strikes on nuclear facilities in Fordo and Isfahan as well.

Natan Odenheimer

Israeli firefighting forces said in a statement that they were rescuing people from buildings struck by the Iranian attack on Tel Aviv and its surrounding areas. So far, they said, 22 injured people have been rescued.

Helene Cooper

The U.S. military is helping Israel to intercept some of the ballistic missiles which Iran fired in retaliation of Israeli strikes, an American official said. The U.S. has already begun moving more military assets to the eastern Mediterranean to help defend American troops in the region.

The official, who spoke on condition of anonymity to discuss sensitive operations, said that American military assets already in the region were used to intercept Iranian missiles on Friday.

Isabel Kershner

Israeli television is showing images of a damaged multistory building and many mangled and burned cars from one of the impact sites in the greater Tel Aviv area. Three hospitals in the area said they had received about 20 wounded people between them, describing their injuries as light and moderate.

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Natan Odenheimer

The Home Front Command, the Israeli military unit responsible for issuing civilian guidelines, said it is now safe to leave shelters across the country, but advised the public to remain near bombproof areas. The announcement suggests that the recent Iranian missile barrage has ended, but that Israel is preparing for the possibility of another attack.

Isabel Kershner

Prime Minister Benjamin Netanyahu of Israel addressed the people of Iran in a video statement on Friday night, telling them Israel’s fight was not with them, but with the Iranian regime, and he encouraged them to rise up against their leaders. “The regime does not know what hit them, or what will hit them. It has never been weaker,” Netanyahu said, adding, in English and Farsi, “This is your opportunity to stand up and let your voices be heard.”

Isabel Kershner

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A partial view of the Dimona nuclear reactor in Israel’s southern Negev desert, in 2014.Credit...Jack Guez/Agence France-Presse — Getty Images

Iran fired its first barrage of dozens of missiles at Israel on Friday night, about 18 hours after Israel’s attacks on Iran began. Israel’s emergency services said they were searching seven sites where missiles or debris hit in the greater Tel Aviv area, the military said. As Israel braces for further retaliation for its attack on Iran’s nuclear program, here are some of the most critical sites, which are likely to be heavily protected:

  • Israel’s nuclear reactor in Dimona, in the southern Negev desert. Israel has long maintained ambiguity about its nuclear capabilities, but is widely believed to have nuclear weapons. A recently declassified U.S. intelligence report from December 1960, by the Joint Atomic Energy Intelligence Committee, stated that the Dimona project included a reprocessing plant for plutonium production. The report concluded then that the project was related to nuclear weapons. Israel has not signed the Treaty on the Non-Proliferation of Nuclear Weapons.

  • The country’s main ports, Haifa and Ashdod, on the Mediterranean coast. Israel also has offshore natural gas platforms, part of its energy infrastructure. In a statement on Friday, Israel’s Ministry of Energy and Infrastructure said it could order the temporary closure of some of the offshore gas fields, citing security concerns given the escalating tensions in the region.

  • Ben Gurion, Israel’s international airport. The airport was shut down on Friday morning, and all incoming and departing flights were canceled as Israel closed its airspace to civilian traffic. Last month, a ballistic missile launched from Yemen by the Iranian-backed Houthi militia struck near Ben Gurion’s main terminal, close to Tel Aviv, after the military failed to intercept the projectile.

  • Military bases. The Israeli military is also likely take measures to protect its headquarters and air bases around the country.

Natan Odenheimer

Israel’s defense minister, Israel Katz, said in a statement that Iran “crossed a red line” by firing missiles at populated areas. He warned that “the ayatollah regime would pay a very heavy price” for its actions.

Neil MacFarquhar

After Iran unleashed a wave of missiles at Israel, some of the pyrotechnics involved in bringing them down were visible over neighboring countries. In Syria, a bright light in the night sky south of Damascus could be seen, most likely a missile being intercepted.

Natan Odenheimer

At least seven sites in Tel Aviv and its surrounding area were hit in the Iranian missile attack, according to an Israeli military official. The extent of the damage was unknown.

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Farnaz Fassihi

Iran’s Revolutionary Guards Corps announced in a statement that it struck “dozens” of targets in Israel “forcefully and with precision,” including military and defense sites, in response to Israel’s attacks on Iran that killed senior commanders, nuclear scientists and civilians.

Natan Odenheimer

The Israeli military said that rocket fire from Iran is continuing, stating that “another barrage of dozens of missiles was fired at Israel.” It said the sounds of explosions were from interceptions by the country’s air defenses.

Isabel Kershner

Dozens of Iranian ballistic missiles are en route to Israel, an Israeli official said. Residents have been instructed to remain in bomb shelters until further notice.

Natan Odenheimer

Explosions can be heard in the sky above Jerusalem, apparently resulting from the interception of missiles by Israel’s defense systems.

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Credit...Menahem Kahana/Agence France-Presse — Getty Images

Robert Jimison

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The US Capitol on Friday morning. Many members of Congress were quick to cheer Israel’s actions and framed them as a justified response to Tehran’s refusal to abandon its nuclear ambitions.Credit...Eric Lee for The New York Times

Israel’s overnight missile strike against Iran divided Congress, drawing praise and strong support from members of both parties, but some lawmakers, most of them Democrats, expressed concern about regional instability and the risk the United States might be drawn directly into the conflict.

Many members of Congress were quick to cheer Israel’s actions and framed them as a justified response to Tehran’s refusal to abandon its ambition to obtain nuclear weapons. Others, including several leading Democrats, urged restraint, warning about the potential for escalation.

The divergent reactions reflected a political divide over President Trump’s leadership, the use of military force, the role of diplomacy and America’s obligations in the Middle East.

Some Republicans in Congress applauded the operation even before President Trump praised it.

“Game on,” declared Senator Lindsey Graham, Republican of South Carolina and one of the most vocal Iran hawks on Capitol Hill, moments after the news broke. In a later statement, Mr. Graham said: “Hats off to Israel for one of the most impressive military strikes and covert operations in Israeli history.”

The House speaker Mike Johnson, a Louisiana Republican, also offered unequivocal support for the strikes, saying in a social media post late Thursday that “Israel IS right — and has a right — to defend itself!”

After Mr. Trump weighed in Friday morning, saying that Iran had brought the attacks on itself, Mr. Johnson applauded the administration’s decision to back Israel’s security goals and echoed the president’s position that Iran “must never obtain a nuclear weapon.”

Mr. Johnson, who recently announced a trip to Israel later this month to address a special session of the Knesset, displayed the same frustration that many on Capitol Hill have expressed in recent weeks over Tehran’s refusal to shelve its nuclear ambitions.

“President Trump and his administration have worked tirelessly to ensure that outcome. Unfortunately, Iran has refused to agree and even declared yesterday its intent to build a new enrichment facility,” he said in a statement on Friday.

Senator James E. Risch, the Republican chairman of the Foreign Relations Committee, had a similar message, saying, “We stand with Israel tonight and pray for the safety of its people and the success of this unilateral, defensive action.”

Neither of the top two Democrats in Congress, Representative Hakeem Jeffries or Senator Chuck Schumer, both of New York, issued a statement on the strikes, though Mr. Jeffries called for de-escalation in an television interview.

“I’m hopeful that cooler heads will prevail in the Middle East and the situation is de-escalated,” Mr. Jeffries said on MSNBC on Thursday night. “We certainly believe that Iran should never be allowed to become nuclear-capable — they are an enemy not just to Israel, but to the United States and to the free world — but we also want to see a reduction in hostilities.”

Among Democrats, no lawmaker has been more vocally supportive of Israel than Senator John Fetterman of Pennsylvania, who has carved out a distinct role as the party’s most unapologetic defender of the U.S.-Israel alliance.

In the hours after the strike, Mr. Fetterman posted on social media: “Our commitment to Israel must be absolute and I fully support this attack. Keep wiping out Iranian leadership and the nuclear personnel. We must provide whatever is necessary — military, intelligence, weaponry — to fully back Israel in striking Iran.”

And several strongly pro-Israel Democrats in the House praised the strikes. Representative Greg Landsman of Ohio swiftly issued a statement proclaiming: “Israel is justifiably defending itself and its people.”

But other Democrats called for de-escalation or expressed concern that Israel’s military action could lead to broader regional instability.

“Israel’s strikes against Iran represent an escalation that is deeply concerning and will inevitably invite counterattacks,” said Senator Jeanne Shaheen of New Hampshire, the top Democrat on the Foreign Relations Committee. “This risks not only U.S. negotiations with Iran, but the safety of American service members, diplomats, their families and expats around the region.”

Senator Jack Reed, the top Democrat of the Armed Services Committee, echoed those concerns.

“I urge both nations to show immediate restraint, and I call on President Trump and our international partners to press for diplomatic de-escalation before this crisis spirals further out of control,” he said. “The world cannot afford more devastating conflict born of shortsighted violence.”

Senator Chris Murphy, Democrat of Connecticut, said in a statement a war between Israel and Iran “may be good for Netanyahu’s domestic politics, but it will likely be disastrous for both the security of Israel, the United States, and the rest of the region.” He added that the United States has “ no obligation to follow Israel into a war we did not ask for and will make us less safe.”

At least one right-wing Republican voiced the same the sentiment. “I’m sad to say but some members of Congress and US Senators seem giddy about the prospects of a bigger war,” Representative Warren Davidson, Republican of Ohio, wrote on social media.

Farnaz Fassihi

Iran’s supreme leader, Ayatollah Ali Khamenei, said in a televised video statement on Friday night said that Iran must and would act forcefully in response to Israel’s attacks. “Life will be dark for them,” Khameni said. “They should not think they have attacked and it’s over.”

“They started it, they started a war,” he added. “We will not allow them to escape this big crime unharmed. Iran’s armed forces will definitely be striking hard.”

Yonette Joseph

The Israeli military said it had identified missiles “launched from Iran towards the territory of the State of Israel. The defense systems are working to intercept the threat.” The military also warned residents, “You must enter the protected areas and remain there until further notice.”

Pranav Baskar

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A satellite photo from February showing the Fordo uranium enrichment facility, south of Tehran. Credit...Maxar Tech/Agence France-Presse — Getty Images

After striking sites critical to Iran’s nuclear weapons program early on Friday, Israel indicated it would next set its sights on the enrichment site known as Fordo, Iran’s second-largest and most fortified nuclear complex.

The Fordo site, built deep underground to thwart such an attack, is where Iran has stockpiled weapons-grade uranium and could quickly produce a bomb, experts said. Fordo, they added, is Israel’s most formidable impediment to halting Iran’s nuclear program altogether.

As Israel continued attacking Iran, Michael Leiter, Israel’s ambassador to the United States, confirmed his country’s intention to target the site.

“The entire operation,” he told Fox News in an interview, “really has to be completed with the elimination of Fordo.”

Here is what we know about the site:

The facilities, buried deep underground in a mountain in the village of Fordo, are roughly 20 miles from the holy city of Qom.

While it is likely that construction on the plant began as early as 2006, the existence of the site was publicly revealed in 2009.

Fordo is a uranium enrichment location where Iran has developed centrifuges to process weapons-grade uranium up to 60 percent purity, an amount far higher than the 3.7 percent purity levels needed for civilian use.

The site was built to hold roughly up to 3,000 centrifuges, which spin quickly to produce fuel for nuclear weapons or reactors, said Richard Nephew, an Iran expert at the Columbia University Center on Global Energy Policy.

Iran, he said, had planned to install even more advanced centrifuges, called IR6s, that could process uranium three to five times more efficiently than the technology currently at the facility.

Considering the facility’s size and configuration, Mr. Nephew said it was well-suited to producing weapons.

“If you don’t deal with Fordo,” Mr. Nephew said, “it’s got enough centrifuges that it could produce a nuclear weapon pretty quickly.”

While it is not exactly clear who manages operations at the facility, experts said it was likely that a combination of the Iranian Atomic Energy Organization, the military and scientists at the plant were in charge.

The security around the facility is maintained by the Islamic Revolutionary Guard Corps, Mr. Nephew said.

Given the facility’s location and fortifications, it would be difficult for Israel to penetrate it with traditional strikes, said Daniel Shapiro, a security expert at the Atlantic Council.

Compared to Natanz, the largest Iranian nuclear facility, which Israel struck early Friday, Fordo is much less exposed. Its destruction would require much more specific bunker-busting equipment.

“If you were to just sort of drop bombs on it, it wouldn’t penetrate it,” Mr. Nephew said.

However, even if Israel doesn’t breach the parts deepest underground, it still may be able to make Fordo inaccessible, by destroying the entrance to it.

Experts agreed that a plan to disable the site — perhaps a combination of special and covert operations, they said — would be essential to stopping Iran’s nuclear program.

“The Israelis have got a multiday campaign plan,” Mr. Nephew said. “It is inconceivable to me that Israelis would launch this attack without an idea of how to deal with Fordo.”

Natan Odenheimer

The Israeli military spokesperson Effie Defrin said in a briefing that Israel has struck an Iranian nuclear facility in Isfahan, part of waves of attacks that have hit 200 targets in Iran so far. Defrin said Israel had destroyed a structure at Isfahan for producing uranium, laboratories and “infrastructure for converting enriched uranium.”

Natan Odenheimer

The Home Front Command, the Israeli military unit responsible for issuing public guidelines, just issued a warning instructing the public to stay near shelters — the same alert it issued overnight when Israel began its first strikes in Iran. This guidance is a possible sign Israel believes Iran is moving toward launching a new round of retaliation.

Sanjana Varghese

Several Israeli strikes appear to have targeted an underground missile base in Kermanshah, in western Iran, on Friday morning. Witness videos verified by The New York Times, and filmed from a car driving on a nearby highway, show three columns of dark smoke rising near a mountain range where the missile base is believed to be located. An Iranian army aviation base and an Islamic Revolutionary Guards Corps facility are also located nearby.

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Helene Cooper

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The U.S.S. Thomas Hudner, a destroyer, sailing through the Bosphorus in Turkey in 2021. The Pentagon directed the ship, along with a second destroyer, to move to the eastern Mediterranean Sea on Friday to help defend Israel.Credit...Murad Sezer/Reuters

The Pentagon is positioning warships and other military assets in the Middle East to help protect Israel, and American troops, from possible Iranian retaliation to Israeli strikes, U.S. officials said on Friday.

The naval destroyer U.S.S. Thomas Hudner was directed to move to the Eastern Mediterranean, and a second destroyer may soon follow, the officials said. The Air Force will most likely move additional fighter aircraft to the region soon, one official said.

The military assets are not being moved to take part in any offensive against Iran, one Defense Department official said. He said that Pentagon officials are still waiting on decisions that might come out of President Trump’s meeting with senior national security officials on Friday morning at the White House. Until then, the official described much of American military posture in the region as still to be determined.

The repositioning of the naval destroyers, first reported by The Associated Press, could supplement Israel’s ability to shoot down ballistic missiles fired as part of an Iranian retaliation.

While U.S. military officials said Friday that Israel has good air defenses, there was some worry that it would need assistance if Iran tried to overwhelm those defenses with a coordinated, large-scale attack.

Last October, United States forces helped Israel thwart a large barrage of missiles and drones launched by Iran after Israel killed a high-ranking a Hamas leader as he visited Iran and then assassinated the leader of Hezbollah in Libya.

There are around 40,000 American troops in the region.

Farnaz Fassihi

Two senior Iranian government officials said Gen. Esmail Ghaani, the Quds Forces commander in charge of the country’s proxies in the Middle East, had been killed. General Ghaani replaced Maj. Gen. Qassim Suleimani, who was killed in a U.S. strike in 2020.

Sanjana Varghese and Christoph Koettl

Sanjana Varghese and Christoph Koettl

Israel’s airstrikes caused severe damage to the nuclear fuel enrichment facility in the central Iranian city of Natanz, according to a review of satellite images taken before and after Friday’s attacks.

The images, reviewed by The Times, showed several buildings and critical energy infrastructure either destroyed or heavily damaged. Fire trucks could be seen beside a large, scorched building in ruins, and plumes of dark smoke were emanating from an electrical substation. In addition, what appear to be several small impact craters could be seen. The site has underground halls believed to hold centrifuges to enrich uranium, which can be used peaceful purposes but at higher levels are needed to build bombs.

Lara Jakes

Lara Jakes

Lara Jakes has covered Iranian diplomacy for more than a decade.

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A damaged, burning building after a strike in Tehran on Friday.Credit...Arash Khamooshi for The New York Times

The last time Israel and Iran traded attacks, Israel received strong support from many allies.

Britain and the United States provided backup for Israel in the form of fighter jets, refueling planes and air defense systems. Some Mideast states allowed Israel to transit their airspace.

This time around, after an audacious wave of attacks that targeted nuclear facilities and military leaders, there was less understanding and more concern.

Some European allies worried that Israel was ratcheting up a military conflict with Iran after eight months of simmering tensions but no overt warfare.

“Escalation serves no one in the region,” Prime Minister Keir Starmer of Britain said, while the European Union’s chief diplomat, Kaja Kallas, called the situation “dangerous.”

Those remarks followed a growing chorus of European condemnation of Israel over the past few months for escalating the war in Gaza after a cease-fire collapsed in mid-March, and for holding back humanitarian aid as the population in the enclave edges closer to the brink of starvation.

The tepid support from some countries that traditionally are among Israel’s strongest allies reflected what Ellie Geranmayeh, a senior Middle East policy expert at the European Council on Foreign Relations, called an “unprecedented” and “unprovoked” attack against Iran that risked “an active war scenario between the two countries.”

Some of the sharpest condemnation on Friday came from countries in the region. Egypt, which has a longstanding peace treaty with Israel, called the latest Israeli strikes a violation of international law and “a direct threat to regional and international peace and security.”

Turkey accused Israel of resorting to military force instead of diplomacy to resolve tensions.

Still, a number of important allies stood behind Israel and expressed mounting frustration with Iran’s advancing nuclear program. And should Iran launch a powerful counterattack against Israel, allies could still come to the country’s defense militarily.

President Trump told CNN that “we of course support Israel,” and called the strikes “a very successful attack.” He urged Iran to limit its nuclear activities “before it will be too late for them.”

President Emmanuel Macron of France, who has recently sparred with Israel over its ongoing war in Gaza and the limiting of humanitarian aid to hungry and desperate Palestinians, said Israel has a “right to protect itself and ensure its security.”

Germany’s chancellor, Friedrich Merz, said Iran has refused to abide by agreements to limit its nuclear program and added that Tehran “poses a serious threat to the entire region, especially to the State of Israel.”

Daniel B. Shapiro, who was a deputy assistant secretary of defense for the Middle East during the Biden administration, said the fact the United States did not participate in the attack “does not mean the United States won’t assist in Israel’s defense. It will.”

Neil MacFarquhar

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The Abqaiq oil processing plant in Saudi Arabia, after it was damaged in an attack from Iran in 2019.Credit...Fayez Nureldine/Agence France-Presse — Getty Images

In September 2019, a barrage of drones and cruise missiles slammed into two Saudi oil facilities near the Persian Gulf, including one of the largest in the world, igniting small fires that briefly interrupted production.

The projectiles were later traced to Iran, and despite its stringent denials, the desire to avoid a repeat of the incident prompted a new and sustained effort by Saudi Arabia and the other Arab Gulf States to use détente and diplomacy toward the Islamic Republic to de-escalate regional tensions.

That effort is being put to the test as never before on Friday amid waves of Israeli attacks on Iran aimed at destroying key facilities and decapitating the military and civilian leadership running its nuclear programs.

“I think the tension is palpable and everybody is concerned about possible blowback,” said Firas Maksad, the managing director for the Middle East and North Africa at the Eurasia Group, a New York-based risk analysis organization. “This is a moment of great uncertainty throughout the region. It is the big war the region has been both fearing and anticipating for years.”

The Gulf Arab states, and indeed much of the Arab world, were quick to issue robust condemnations of the Israeli attacks like this one from Riyadh: “The Kingdom of Saudi Arabia expresses its strong condemnation and denunciation of the blatant Israeli aggression against the brotherly Islamic Republic of Iran, which undermine its sovereignty and security and constitute a clear violation of international laws and norms.”

The Saudi foreign minister, Prince Faisal bin Farhan, and several others from the region called their Iranian counterpart to repeat the condemnation.

With the Arab world already inflamed by the Gaza conflict, a related war in Lebanon, a long-running civil war in Yemen and Syria barely staggering to its feet after 14 years of violence and civil war, there was also frustration that attempts at de-escalation had failed. It was tensions over Yemen that had prompted the 2019 attack against Saudi Arabia.

“We are frustrated and fatigued,” said Bader al-Saif, a professor of history at Kuwait University. “The region has been doing its best for the past few years to come to terms with everyone, including Israel,” he added. “But Israel is trying to reset the region to their own tune and they are trying to do this violently.”

The United States was considered part of the problem. Although President Trump kept a certain distance from the prospect of conflict between the Middle East’s two most powerful militaries, and had been trying to negotiate a new deal to defuse Iran’s nuclear program, he had not blocked Prime Minister Benjamin Netanyahu of Israel from launching the attack.

“After the triumphant Trump visit to the Gulf and serious mediation efforts, there will also be some frustration that Trump has proved unwilling or unable to restrain Netanyahu,” said Dr. Sanam Vakil, the director of the Middle East and North Africa Programme at Chatham House, a London-based research institute.

Part of the equation is that the region depends heavily on American military power for its defense, with U.S. forces deployed at air bases in Qatar, the United Arab Emirates and Saudi Arabia as well as a major naval base on Bahrain, along with troops scattered across Iraq and northeastern Syria.

While the Gulf bases were established in recent decades not least as a deterrent for Iran, there was fear that Tehran might miscalculate by targeting them, widening the conflict by drawing in the United States.

Gulf countries have all committed billions of dollars to major, futuristic development projects meant to wean their economies off oil, so a major war would also jeopardize those plans.

The attacks by Israel against Iran immediately threatened the region’s economy, with airlines canceling countless flights for the foreseeable future. Israel, Iran, Iraq and Jordan all closed their airspace. Countries like Jordan, Lebanon and Egypt that depend heavily on tourist dollars had been hoping for a revival.

Jordan said it was shooting down Iranian projectiles that violated its airspace, but underscored that it was protecting itself and not joining the war. Syria was considered completely out of this conflict.

Of course, Arab states had been worried about Iran’s acquiring nuclear weapons as well, even if there was some sense that Israel had exaggerated the threat. Crippling the Iranian nuclear program would provoke some satisfaction, analysts said, but it seemed an enormous gamble.

“If Israel and or the United States can finish off the threat to the Gulf countries via military means, I don’t think that Arab leaders will be shedding tears,” Mr. Maksad said. “The great concern is a job half-done that then leaves them wide open to retaliation and undermines their national development projects in the process.”

Two rounds of tit-for-tat attacks between Israel and Iran last year ended fairly quickly, but there was anxiety that this new one could escalate. That increased the potential for unforeseen consequences. “For the Iranians, this will require a different kind of response, more sustained and more hurtful,” said Randa Slim, a senior fellow at the Middle East Institute in Washington.

For the moment Iran’s beleaguered proxy forces, including Hezbollah, did not react beyond verbal condemnations. Worst-case scenarios include the closure of the Strait of Hormuz, a choke point for Persian Gulf oil exports. Since Iran depends on that flow as well, even as it is limited at the moment due to sanctions, that is seen as a possible last desperate step.

“If this continues, we are going into unchartered terrain,” Dr. al-Saif said.

Ismaeel Naar contributed reporting.

Patrick Kingsley

Patrick Kingsley

Patrick Kingsley is the Jerusalem bureau chief, leading coverage of Israel, the West Bank and Gaza.

News Analysis

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A building damaged by an Israeli strike in Tehran, on Friday.Credit...Arash Khamooshi for The New York Times

For years Israel’s prime minister, Benjamin Netanyahu, oversaw a clandestine conflict with Iran, one in which every move was calibrated to avoid an all-out war between two of the region’s most powerful militaries. Even last year, when both sides openly attacked each other for the first time, Israel avoided strikes that risked igniting a drawn-out battle.

Now, Mr. Netanyahu has thrown caution to the wind with an astonishingly brazen and broad attack on Iran that will likely unleash weeks or more of turmoil across the region. On Mr. Netanyahu’s orders, Israel has targeted not only Iran’s nuclear sites but its air defenses, its military bases and its most senior military leadership.

In doing so, analysts said, Mr. Netanyahu had short-term motivations: to derail diplomatic negotiations between the United States and Iran, and to prevent the immediate expansion of Iran’s nuclear program.

He also has far grander aspirations. For decades, Mr. Netanyahu has presented the Shiite Islamist regime in Iran as the greatest threat to Israel’s security, both because of its homegrown efforts to build a nuclear bomb, and because of Iran’s support for Palestinian militias and other Arab groups opposed to Israel.

After years of advocating for the overwhelming use of force to quell that danger, Mr. Netanyahu finally seems ready to turn his threats into action — perhaps, analysts said, with an eye on his place in Israeli history

Mr. Netanyahu now risks embroiling the region, and potentially, the United States, in conflict as he faces domestic turmoil at home and greater international censure over his conduct of the war against Hamas in Gaza.

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Prime Minister Benjamin Netanyahu at the Israeli parliament in Jerusalem on Wednesday.Credit...Menahem Kahana/Agence France-Presse — Getty Images

“For him, this is personal — for 25 years, he has been talking about this,” said Nadav Shtrauchler, a former adviser to Mr. Netanyahu, and an Israeli political analyst. “This is the big picture that he has been aiming for. This is his legacy.”

Mr. Netanyahu had planned a large-scale attack on Iran more than a decade ago, during a previous term as prime minister. But he ultimately called it off under pressure from the Obama administration and amid concerns in his cabinet about Israel’s military capabilities. In 2015, he risked a rupture with President Obama by making a speech to Congress in which he criticized Mr. Obama’s efforts to curb Iran’s nuclear program through diplomacy.

Recent events have made it easier for the military to strike, likely emboldening Mr. Netanyahu. Over the last year and a half, Israel decimated Iran’s regional alliances and reduced Iran’s own defensive capabilities. Hezbollah, Iran’s ally in Lebanon, is now severely weakened, while the Syrian government, another Iranian ally, was overthrown in December.

Finally, the election of President Trump widened the window of opportunity. Though Mr. Trump pursued a diplomatic arrangement with Iran over its nuclear ambitions and even asked Mr. Netanyahu to delay the strike, the president at times seemed more willing than President Biden to entertain the idea of an attack.

“Diplomatically, Trump’s election gave Netanyahu a president willing to rhetorically back a credible military threat,” said Michael Koplow, an analyst at Israel Policy Forum, a New York-based research group.

“Netanyahu’s preference to deal with Iran’s nuclear program through military action has been crystal clear for years, and he finally had his perfect storm of opportunity,” Mr. Koplow added.

Domestically, Mr. Netanyahu also stands to benefit from a strike on Iran. His reputation as the guardian of Israel’s security was tarnished by Hamas’s attack on Israel in October 2023, the deadliest security failure in Israel’s history.

If the attack on Friday, which also killed two Iranian nuclear scientists, severely diminishes Iran’s nuclear program, analysts said, Mr. Netanyahu could bolster his national standing ahead of a general election next year.

“Netanyahu wants to start his election year with a visible advantage,” said Mazal Mualem, a biographer of Mr. Netanyahu and a political commentator.

“Instead of bearing the responsibility for Oct. 7, he wants to be able to etch his role in the history of Israel as the statesman who defeated the Iranian nuclear program,” Ms. Mualem said. “But all this of course depends on how things will develop.”

Eventually, it could also present Mr. Netanyahu with an opportunity to end the war in Gaza, Mr. Shtrauchler said. For more than a year, Mr. Netanyahu has refused to consider a permanent truce in Gaza without Hamas’s complete defeat there, amid strong resistance to such an outcome from his right-wing allies.

By inflicting meaningful wounds on Hamas’s biggest benefactor, Iran, it may be easier for Mr. Netanyahu to compromise in Gaza, Mr. Shtrauchler said.

Now, Mr. Shtrauchler said, “He can wrap it up and say we changed the equation for the good. I don’t think it will happen tomorrow, but it’s a huge step toward that.”

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