World
How Missile Defense Works (and Why It Fails)
Once a
The target,
In April and October, Iran launched two of the largest ballistic missile attacks in history at Israel. The world’s most advanced missile defense systems, deployed by Israel and the United States, stopped some of the missiles — but not all of them.
Neither attack caused major damage, but some Israeli and American officials said it may have been a matter of luck that it was not worse. After Israel struck back at Iran last week, Iranian officials threatened another round of retaliation, although their plans remain unclear.
Here’s why stopping a ballistic missile attack is hard.
Ballistic missiles like the ones Iran fired last month escape the atmosphere and accelerate to great speeds as they fall back down to Earth. It took only about 12 minutes for Iran’s missiles to reach Israel, analysts estimate. But there was far less time to make critical decisions about how to stop them.
Within seconds,
A defensive missile called
That’s all hard enough with one missile. But Iran fired
Radars can only track so many targets at once, and launchers, once emptied, may need a half hour or more to reload.
Beyond that, if they are concerned about future attacks, targeted countries may also need to make a critical split-second decision to
After Iran’s second barrage, in October, Israel said its defense systems had shot down many of the missiles, and those that struck appear to have caused limited damage.
But satellite imagery does show that the barrage, which analysts said used more advanced missiles, left dozens of craters at one air base, Nevatim. Had those missiles landed in a populated area, the death and destruction could have been extensive.
Israel’s best-known defense system, the Iron Dome, was built to stop short-range rockets, and is too slow and limited when it comes to ballistic missiles. For that, Israel relies on several more advanced layers of defense designed to counter ballistic missiles at different stages of flight.
The most advanced systems, long-range interceptors like the Arrow 3, operate in space, where ballistic missiles like those Iran fired spend most of their time. They are the first chance to stop a missile, but high above the atmosphere, there is no room for error.
Both an The interceptor seeks That’s because missiles like Iran’s latest are only about If that weren’t hard enough, some ballistic missiles carry
It’s unclear how often interceptions above the atmosphere actually work. Governments tend to avoid disclosing specific interception rates, and they have every reason to present a positive picture, even when interceptions fail. So do the companies that manufacture the pricey systems.
When combined with U.S. antimissile systems in the region, Israel currently has the most layers of missile defense in the world. If outer-layer defenses fail to stop a missile, shorter-range systems that intercept missiles closer to the ground may have another chance.
But time runs out quickly. The closer a ballistic missile gets, the more dangerous it becomes. And even if a lower-altitude intercept is successful, the resulting debris can still be deadly.
If a missile succeeds in re-entering the atmosphere, often less than a minute remains before it strikes. Defenses that work As the missile nears the ground, An attacker can draw on a variety of tactics. To distract the enemy, it can fire a volley of cheaper
Israel’s retaliatory strike at Iran last week targeted missile production sites and degraded Iran’s ability to produce the kind of missiles it fired in October. The attack damaged at least one rocket production facility, as well as fuel mixers that make propellant for Iran’s missile fleet.
It is unclear how Iran will respond or whether it will fire another round of ballistic missiles, but if it does, the fundamental imbalance of missile warfare will remain: Firing a ballistic missile is a lot easier than stopping one. And making a ballistic missile is cheaper and faster than making an interceptor to shoot one down.
Over the course of a protracted conflict, it could become a question of which side runs out of missiles first.
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Iran’s hardline parliament speaker and key negotiator Mohammad Bagher Ghalibaf warned that Tehran would not honor its commitments under a newly signed memorandum with the U.S. if Washington fails to uphold its side of the deal, according to the media arm of Iran’s Islamic Revolutionary Guard Corps.
“If the United States does not honor its commitments, there is no way Iran will honor its own commitments,” Ghalibaf said.
Ghalibaf’s warning was echoed Thursday by Islamic Revolutionary Guard Corps Quds Force commander Esmail Qaani, who threatened the U.S. in remarks translated by MEMRI TV, saying, “Americans should know their place and avoid confronting the Muslims.”
Qaani added that “Trump is trembling” and warned that the U.S. “should fear not only Hormuz and Bab al-Mandeb, but many other locations as well.”
MEET IRAN’S HARDLINE SPEAKER WHO THREATENED TO BURN US FORCES — REPORTEDLY TEHRAN’S POINT MAN FOR TALKS
The warnings came after President Donald Trump and Iranian President Masoud Pezeshkian Wednesday digitally signed a copy of the memorandum aimed at ending the war and resuming the flow of traffic through the Strait of Hormuz.
Iran’s hardline parliament speaker and key negotiator Mohammad Bagher Ghalibaf warned that Tehran would not honor its commitments under a newly signed memorandum with the U.S. if Washington fails to uphold its side of the deal. (Majid Asgaripour/WANA)
The memorandum gives Iran major economic relief while leaving some of the most difficult nuclear questions for a final agreement to be negotiated throughout the next 60 days. Under the 14-point plan read by a senior U.S. official, Washington agreed to begin lifting its naval blockade, work with regional partners on a $300 billion reconstruction and development plan for Iran and terminate U.S., U.N. and other sanctions on an agreed schedule as part of a final deal.
The memorandum also says all licenses, waivers and permissions needed for related financial transactions would be granted by the United States.
In return, Iran reaffirmed that it “shall not procure or develop nuclear weapons,” and the sides agreed to resolve the fate of Iran’s stockpiled enriched material under a future mechanism, with the minimum method being on-site down-blending under International Atomic Energy Agency supervision.
The agreement defers many of the hardest questions — including how to wind down Iran’s nuclear program — until the 60-day negotiation period for a final deal.
But the Iranian figure at the center of the deal is not a diplomat known for moderation.
Ghalibaf, a former Islamic Revolutionary Guard Corps commander and longtime regime insider, has threatened American forces, vowed Trump would “pay the price” and built his career through loyalty to Iran’s security establishment.
The new warning underscored what experts say is the central risk of the agreement. Washington may be entering a deal with officials who can enforce Iran’s commitments but who have shown little sign of changing the regime’s long-term posture toward the U.S., Israel or the region.
Ghalibaf, 64, is a product of Iran’s security establishment. He rose through the ranks of the Islamic Revolutionary Guard Corps during the Iran-Iraq War, eventually becoming commander of the Islamic Revolutionary Guard Corps air force.
He later served as Iran’s national police chief, overseeing internal security forces responsible for suppressing protests, including the 1999 student uprising, alongside Qassem Soleimani.
After transitioning into politics, Ghalibaf attempted to run for president multiple times but failed. He instead built his career through loyalty to the system, serving as Tehran’s mayor for more than a decade before becoming speaker of parliament in 2020.
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Iranian Parliament Speaker Mohammad Bagher Ghalibaf looks on as parliament members wearing military uniforms chant in support of the IRGC in Tehran, Iran, on Feb. 1, 2026. (Hamed Malekpour/Islamic consultative assembly news agency/WANA/Handout via Reuters)
“Ghalibaf doesn’t have an independent line. His strength is that he is a ‘yes man,’” Beni Sabti, an Iran expert at the Institute for National Security Studies, previously told Fox News Digital. “If he is told to shake hands with special envoy Steve Witkoff, he will do it. If he is told to escalate, he will. It is not about moderation, it is about who gives the orders.”
“His name has also been linked to multiple corruption allegations, including misuse of oil revenues and sanctions evasion networks involving his family. His sons have reportedly been involved and are under sanctions,” Sabti said.
“There have also been public scandals involving family members traveling abroad and making luxury purchases, including widely circulated images of them arriving with numerous high-end Gucci suitcases.”
Behnam Ben Taleblu, a senior fellow at the Foundation for Defense of Democracies, said the image of Ghalibaf at a signing ceremony with a senior U.S. official would be a propaganda victory for the regime.
“There was a time when the Islamic Republic would have been terrified to be seen signing such a thing,” Ben Taleblu told Fox News Digital. “Postwar, this is a sign of the regime’s opportunism, and no one identifies that opportunism better than someone like Ghalibaf, who comes from the IRGC, who is a corrupt politician and is a wheeler and dealer.”
But Taleblu warned that Washington should not confuse Ghalibaf’s opportunism with moderation.
“The mirage is the myth of Iranian military moderation and the myth that, with time, this regime will integrate and put aside all the things that have kept it on the sidelines for so long,” he said. “Transforming Iran via a deal — that is a huge lift.”
Ghalibaf’s wartime statements reflect the hardline posture inside Iran’s leadership. In remarks aired on Iranian television Jan. 12 and translated by MEMRI, he warned that U.S. forces would face catastrophic consequences if they confronted Iran.
“Come, so you can see what catastrophe befalls American bases, ships and forces,” he said, adding that American troops would be “burned by the fire of Iran’s defenders.”
TRUMP ADMINISTRATION UNVEILS SWEEPING TERMS OF PROPOSED IRAN AGREEMENT
A man lights a cigarette with fire from a burning picture of Iranian Parliament Speaker Mohammad Bagher Ghalibaf as Israelis rally in support of nationwide protests in Iran in Holon, Israel, on Jan. 14, 2026. (Ammar Awad/Reuters)
More recently, he warned that “the blood of American soldiers is the personal responsibility of Trump” and vowed Iran would “settle accounts with the Americans and Israelis,” adding that “Trump and Netanyahu crossed our red lines and will pay the price.”
John Hannah, a senior fellow at the Jewish Institute for National Security of America and a former national security advisor to Vice President Dick Cheney, said Ghalibaf’s expected role reflects the reality of who holds power inside Iran.
“If you’re going to sign an agreement with Iran, those are the forces in charge and calling the shots, presumably with the approval of the new supreme leader,” Hannah told Fox News Digital. “If the U.S. harbors hope that Iran will ever implement any of their obligations under the MOU, these are the people — odious as they are — capable of making it happen.”
But Hannah said the central question is whether Iran’s leadership sees compliance as useful or whether the agreement is simply a tactical pause.
“The big question is whether they see it in their interest to do so, or are they only buying time, rebuilding their power and preparing for the next round of conflict,” he said.
Ben Taleblu was even more blunt, warning that even a seemingly favorable agreement would not change the nature of the regime.
“Even if you’ve got the perfect deal, with this kind of regime, with this kind of mentality, they will escalate,” he said. “I thought we would have learned by now what the regime did after the JCPOA. It built a vast missile arsenal. It literally built an empire of terror proxies that took Israel years of blood, effort and money to dismantle, backed by American support.
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Iranian Parliament Speaker Mohammad Bagher Ghalibaf speaks during a press conference in Tehran, Iran, Nov. 27, 2024. (Majid Asgaripour/WANA via Reuters)
“If we engage in pay-to-play with these guys,” he added, “I’m sorry to sound the alarm bell like this — but something tells me this is bad either way.”
Responding to questions about the threats from Ghalibaf and IRGC Quds Force commander Esmail Qaani, the White House defended Trump’s approach and warned Iran would face consequences if it failed to reach a final deal.
“President Trump has a great track record of good deals for the American people, and the President has been clear about the consequences if Iran fails to make a good, final deal,” White House spokeswoman Olivia Wales told Fox News Digital.
“What the president has achieved on the battlefield and at the negotiating table is nothing short of remarkable and will strengthen American security for many years to come.”
Tehran holds back from talks to cement ceasefire due to ongoing Israeli attacks on southern Lebanon.
Published On 19 Jun 2026
Planned talks in Switzerland between the United States and Iran to discuss the technical terms of their ceasefire deal have been postponed.
The Swiss Foreign Ministry confirmed early on Friday that the talks, which were scheduled to take place in Burgenstock, would now not go ahead.
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Reports suggest that Iran has delayed sending its delegation to discuss the technical issues linked to the ceasefire deal – digitally signed by the two countries on Wednesday – due to Israel’s ongoing military campaign in Lebanon.
Israeli strikes overnight and into Friday have reportedly killed at least 16 people in southern Lebanon, with Iran-linked Hezbollah reporting intense fighting.
Talks postponed
A ceremony followed by talks was expected to be held at the Burgenstock Resort in Stansstad, near Lucerne in central Switzerland.
It is owned by Katara Hospitality, part of Qatar’s sovereign wealth fund, which helped mediate peace in the conflict.
On Friday, in a message to media outlet AFP, the Swiss foreign ministry said: “The planned talks between the US, Iran, Qatar and Pakistan have been postponed”.
“Switzerland remains ready to facilitate these talks. The relevant preparatory work at Burgenstock is continuing,” it added, without providing a new date for the talks.
The announcement followed a report from media outlet Al-Mayadeen that Iran was delaying sending its delegation to Switzerland over Israel’s ongoing military campaign in Lebanon.
Israeli Prime Minister Benjamin Netanyahu said Thursday that Israel’s military will stay in a “security zone” of southern Lebanon as long as “Israel’s security needs require it.”
Israel and Hezbollah are not parties to the agreement, but Iran has insisted Israel must withdraw from the large swath of southern Lebanon it is occupying.
Logistics have never been ‘simple or predictable’
The US push to quickly begin high-stakes talks with Iran hit a snag just two days after the signing of a 14-point memorandum of understanding with the US that sets out a framework for talks during a 60-day negotiation period.
Vice President JD Vance had been prepared to make an overnight flight to meet with his Iranian counterparts at the mountainside resort in the tiny Swiss village of Obburgen.
His staff and a small pack of journalists had even gathered at Joint Base Andrews outside Washington in anticipation of the trip.
Meanwhile, dozens of White House officials, advance staffers and more media gathered in Switzerland to prepare for Vance’s anticipated arrival.
But then, abruptly on Thursday evening, the trip was called off.
The White House issued a statement explaining Vance – who has been tapped by President Donald Trump to lead the negotiations – and his delegation were prepared for talks, but they were unable to finalise plans and the vice president would remain in Washington.
“The logistics of these negotiations have never been simple or predictable,” the statement noted.
Also on Thursday, Pakistan’s Prime Minister Shehbaz Sharif cancelled his trip to Switzerland, his spokesperson told AFP.
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