Hegseth insists the Iran conflict is 'not endless' while warning more casualties are likely

WASHINGTON (AP) — Defense Secretary Pete Hegseth spoke Monday to widening concerns that the U.S.-Israeli strikes in Iran could spiral into a protracted regional conflict by declaring: “This is not Iraq. This is not endless," even as he warned that more American casualties are likely in the weeks ahead.

While the Trump administration has cited Iran’s nuclear ambitions as the chief concern to be addressed, officials increasingly are pointing to the threat from Iran’s ballistic missiles as a key reason to launch the attacks as well as an opportunity to take out the government’s leadership and the sense that negotiations around the nuclear program have stalled.

Trump said Monday that Iran’s conventional missile program “was growing rapidly and dramatically, and this posed a very clear, colossal threat to America and our forces stationed overseas.”

Hegseth said at a separate press conference with Gen. Dan Caine, chairman of the Joint Chiefs of Staff, that the operation had a “decisive mission” to eliminate the threat of Iranian ballistic missiles, destroy the country’s navy and ensure “no nukes.”

Trump, Hegseth and Caine have not suggested any exit plan or offered signs that the conflict would end anytime soon as the killing of Iranian Supreme Leader Ayatollah Ali Khamenei cast doubt on the future of the Islamic Republic and hurtled the region into broader instability. Caine said the biggest U.S. military buildup in the Middle East in decades would only grow because the commander in the region “will receive additional forces even today.”

“This is not a so-called regime-change war, but the regime sure did change, and the world is better off for it,” Hegseth said.

Trump, however, in video statements released after the strikes began, urged the Iranian people “to take back your country.”

The conflict has spilled into the wider region, with Iran and its allied armed groups launching missiles at Israel, Arab states and U.S. military targets in the Middle East.

Six American troops have been killed, with Trump, Hegseth and Caine predicting more casualties. All were Army soldiers and part of the same logistics unit in Kuwait, according to a U.S. official who was not authorized to comment publicly and spoke on condition of anonymity.

When asked about the six deaths Monday, Hegseth said an Iranian weapon made it past allied air defenses “and, in that particular case, happened to hit a tactical operations center that was fortified.”

Eighteen American service members also have been seriously wounded, said Capt. Tim Hawkins, a spokesman for U.S. Central Command.

The latest sign of the escalating upheaval came when, the U.S. military said, ally Kuwait “mistakenly shot down” three American fighter jets during a combat mission as Iranian aircraft, ballistic missiles and drones were attacking. U.S. Central Command said all six pilots ejected safely from the American F-15E Strike Eagles and were in stable condition.

Asked if there are boots on the ground now in Iran, Hegseth said, “No, but we’re not going to go into the exercise of what we will or will not do.”

He said it was “foolishness” to expect U.S. officials to say publicly “here’s exactly how far we’ll go.”

Trump told the New York Post on Monday that he wasn’t ruling out U.S. forces in Iran if “they were necessary.” He noted, “I don’t have the yips with respect to boots on the ground."

At the White House, Trump said the mission was expected to take four to five weeks but “we have the capability to go far longer than that.”

Secretary of State Marco Rubio told reporters at the Capitol that the U.S. “will do this as long as it takes to achieve" its objectives and warned that “the hardest hits are yet to come from the U.S. military."

Hegseth also dismissed questions about the time frame and said Trump had “latitude” to decide how long it would take. “Four weeks, two weeks, six weeks," he said. “It could move up. It could move back.”

In laying out a case for the strikes, Hegseth did not point to any imminent nuclear threat from Iran and said again that strikes by the U.S. and Israel last June “obliterated their nuclear program to rubble.”

Instead, Hegseth pointed to threats from other weaponry that justified the operation: “Iran was building powerful missiles and drones to create a conventional shield for their nuclear blackmail ambitions.”

He added: “Our bases, our people, our allies, all in their crosshairs. Iran had a conventional gun to our head as they tried to lie their way to a nuclear bomb.”

Hegseth said that during negotiations leading up to the attack, Iranian officials were “stalling" despite having “every chance to make a peaceful and sensible deal.”

He also justified the operation by describing Iran’s government as having started the conflict from its inception, declaring that for 47 years it has “waged a savage, one-sided war against America.”

In a private briefing Sunday, Trump administration officials told congressional staffers that U.S. intelligence did not suggest Iran was preparing to launch a preemptive strike against the U.S., three people familiar with the briefings said.

Trump, a Republican, had said the objective of the mission was to eliminate “imminent threats from the Iranian regime.” And senior Trump administration officials, who were not authorized to comment publicly and spoke on the condition of anonymity, told reporters Saturday that there were indicators that the Iranians could launch a preemptive attack.

As with the attack that dropped massive bunker-buster bombs on Iranian nuclear facilities last year, Caine said the military used B-2 stealth bombers in the new operation with a 37-hour round trip.

He said the penetrating bombs were dropped on Iranian underground facilities" but did not specify that they were nuclear facilities. Nuclear sites were not among the types of targets on a list released over the weekend by U.S. Central Command.

The administration says Israel and the U.S. have bombed Iranian missile sites and targeted its navy, claiming to have destroyed its headquarters and multiple warships.

Caine on Monday referenced the use of cyber technologies, saying the U.S. “effectively disrupted communications and sensor networks” that left “the adversary without the ability to coordinate or respond effectively.”

Without giving specifics, Caine said the military “delivered synchronized and layered effects designed to disrupt, degrade, deny and destroy Iran’s ability to conduct and sustained combat operations on the U.S. side.”

Caine said Trump gave the go-ahead order for the strikes at 3:38 p.m. EST on Friday. That meant the president gave the green light when he was aboard Air Force One heading to Texas with Republican Sens. Ted Cruz and John Cornyn and actor Dennis Quaid.

Associated Press writers Meg Kinnard in Charleston, S.C.; Bill Barrow in Atlanta; David Klepper, Ben Finley and Lisa Mascaro in Washington; and Farnoush Amiri in New York contributed to this report.

President Donald Trump departs after a Medal of Honor ceremony in the East Room of the White House, Monday, March 2, 2026, in Washington. (AP Photo/Alex Brandon)

President Donald Trump walks past Defense Secretary Pete Hegseth as he exist the East Room of the White House following the Medal of Honor ceremony, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Chairman of the Joint Chiefs of Staff Gen. Dan Caine speak during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Defense Secretary Pete Hegseth and Chairman of the Joint Chiefs of Staff Gen. Dan Caine take questions during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Defense Secretary Pete Hegseth speaks during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Defense Secretary Pete Hegseth speaks during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Defense Secretary Pete Hegseth speaks during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Defense Secretary Pete Hegseth listens during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Defense Secretary Pete Hegseth speaks during a press briefing at the Pentagon, Monday, March 2, 2026, in Washington. (AP Photo/Mark Schiefelbein)

Gen. Dan Caine, chairman of the Joint Chiefs of Staff, greets Sen. Chris Coons, D-Del., before President Donald Trump delivers the State of the Union address to a joint session of Congress in the House chamber at the U.S. Capitol in Washington, Tuesday, Feb. 24, 2026. (Kenny Holston/The New York Times via AP, Pool)

BEIRUT, Lebanon (AP) — A 10-day truce began in Lebanon on Friday that could pause fighting between Israel and the Hezbollah militant group and boost attempts to extend the ceasefire between Iran, the United States and Israel after weeks of devastating war.

U.S. President Donald Trump announced the agreement as a ceasefire between Israel and Lebanon. However, Israel has not been fighting with Lebanon itself, but rather with the Iranian-backed Hezbollah militants inside the country, who were not formally part of the agreement.

Barrages of gunshots rang out across Beirut as residents fired into the air just after midnight to celebrate the beginning of the truce.

Displaced families began moving toward southern Lebanon and Beirut’s southern suburbs, despite warnings by officials not to attempt to return to their homes until it became clear whether the ceasefire would hold.

Earlier, Israeli Prime Minister Benjamin Netanyahu said he agreed to the ceasefire “to advance” peace efforts with Lebanon, but said Israeli troops would not withdraw.

Israeli forces have engaged in fierce battles with Hezbollah in the border area as they pushed into southern Lebanon to create what officials have called a “security zone.” Netanyahu, in his video address, said it will extend 10 kilometers (6 miles) into Lebanon.

“That is where we are, and we are not leaving,” he said.

Hezbollah said that “Israeli occupation on our land grants Lebanon and its people the right to resist it, and this matter will be determined based on how developments unfold” — a stance that could complicate the ceasefire.

The U.S. State Department said that according to the agreement, Israel reserves the right to defend itself “at any time, against planned, imminent, or ongoing attacks.” But otherwise, Israel “will not carry out any offensive military operations against Lebanese targets, including civilian, military, and other state targets.”

The wording suggested Israel would maintain the freedom to strike at will, as it did in the months following the ceasefire that ended the previous war. This time, Hezbollah said it would respond to any strikes by Israel.

It's unclear when the 1 million people displaced by the war will be able to safely return.

Lebanon’s state-run National News agency reported that Israeli shelling continued in the villages of Khiam and Dibbine about a half hour after the truce went into effect. Israel’s military said it was looking into reports of shelling and artillery fire in southern Lebanon.

Hezbollah kept firing rockets at northern Israeli towns and communities right up to the start of the ceasefire. Air raid sirens went off in some often-targeted border towns less than 10 minutes before midnight.

The agreement came after a meeting between Israel's and Lebanon’s ambassadors in Washington and a flurry of subsequent phone calls from Trump and Secretary of State Marco Rubio, according to a White House official.

They were the first direct diplomatic talks between the two countries in decades. Hezbollah had opposed direct talks between Lebanon and Israel.

Trump spoke Wednesday evening with Netanyahu, who agreed to a ceasefire with certain terms, according to the official, who was not authorized to comment publicly and spoke on condition of anonymity.

Rubio then called Lebanon’s president, Joseph Aoun, who got on board. Trump then spoke with Aoun, and again with Netanyahu.

The State Department worked with both governments to formulate a memorandum of understanding for the truce.

Lebanon has insisted on a ceasefire to stop the fighting between Israel and Hezbollah before engaging in more talks, while vowing to commit to disarming the group.

Israel and Lebanon have technically been at war since Israel was established in 1948, and Lebanon remains deeply divided over diplomatic engagement with Israel.

Trump also invited the leaders of Israel and Lebanon to the White House for what he said would be “the first meaningful talks" between the countries since 1983.

“Both sides want to see PEACE, and I believe that will happen, quickly,” Trump wrote on social media.

Lebanon and Israel signed an agreement in 1983 saying Lebanon would formally recognize Israel, and Israel would withdraw from Lebanon. The deal fell apart during Lebanon’s civil war and was formally rescinded a year later.

A Hezbollah official said the ceasefire was a result of Iran’s negotiations with the U.S., in which Iran had insisted Lebanon be included in its own ceasefire, and came about through efforts by mediator Pakistan. The official spoke on condition of anonymity because he was not authorized to speak publicly.

Meanwhile, Pakistan’s army chief met Thursday with Iran’s parliament speaker as part of international efforts to press for an extension to a ceasefire that has paused almost seven weeks of war between Israel, the U.S. and Iran.

It was unclear whether the frantic diplomacy could lead to a lasting deal before the ceasefire ends next week. The Iran war has killed thousands of people and upended global markets by disrupting the flow of oil.

Iranian state television did not provide details on the meeting between Pakistani Army Gen. Asim Munir and Iranian Parliament Speaker Mohammad Bagher Qalibaf, his country’s chief negotiator.

There was no immediate comment from Pakistan, a key mediator after hosting the talks between the U.S. and Iran that authorities said helped narrow differences between the sides.

The White House said any further talks regarding Iran would likely take place in the Pakistani capital of Islamabad, though no decision had been made on whether to resume negotiations. The fragile ceasefire is holding despite a U.S. naval blockade of Iranian ports and Iranian counter-threats to target regional ports across the Red Sea.

Trump suggested the ceasefire could be extended.

“If we’re close to a deal, would I extend?” Trump said in an exchange with reporters. “Yeah, I would do that.”

The war has jolted markets and rattled the global economy as shipping has been cut off and airstrikes have pounded military and civilian infrastructure. Oil prices have fallen amid hopes for an end to fighting, and U.S. stocks on Wednesday surpassed records set in January.

Even as the U.S. blockade on Iranian ports and renewed Iranian threats strained the ceasefire, regional officials reported progress, telling AP the United States and Iran had an “in-principle agreement” to extend it to allow for more diplomacy. They spoke on condition of anonymity to discuss sensitive negotiations.

But tensions simmered.

The commander of Iran’s joint military command, Ali Abdollahi, threatened to halt trade in the region if the U.S. does not lift its naval blockade, and a newly appointed military adviser to Iranian Supreme Leader Mojtaba Khamenei said he does not support extending the ceasefire.

The fighting has killed at least 3,000 people in Iran, more than 2,100 in Lebanon, 23 in Israel and more than a dozen in Gulf Arab states. Thirteen U.S. service members have also been killed.

Mediators are pushing for a compromise on three main sticking points: Iran’s nuclear program, the Strait of Hormuz and compensation for wartime damages, according to a regional official involved in the mediation efforts.

Since the war began, Iran has curtailed maritime traffic through the strait, which a fifth of global oil transited through in peacetime. Tehran’s effective closure of the strait sent oil prices skyrocketing, raising the cost of fuel, food and other basic goods far beyond the Middle East.

Becatoros contributed from Athens, Greece. Matthew Lee and Ben Finley in Washington, Samy Magdy in Cairo, Melanie Lidman in Tel Aviv, Israel, and Munir Ahmed in Islamabad contributed to this report.

Residents stand next to the rubble of a destroyed building that was hit a week ago in an Israeli airstrike in central Beirut, Lebanon, Thursday, April 16, 2026. (AP Photo/Hussein Malla)

People drive their motorbikes past billboards showing the Iran's Supreme Leader Ayatollah Mojtaba Khamenei, top and right, and his father, the slain Supreme Leader Ayatollah Ali Khamenei, who was killed in U.S. and Israeli strikes on Feb. 28, in downtown Tehran, Iran, Thursday, April 16, 2026. (AP Photo/Vahid Salemi)

Workers search amongst the rubble of a destroyed building that was hit a week ago in an Israeli airstrike in central Beirut, Lebanon, Thursday, April 16, 2026. (AP Photo/Hussein Malla)

A worker arranges furniture from an apartment of a destroyed building that was hit a week ago in an Israeli airstrike in central Beirut, Lebanon, Thursday, April 16, 2026. (AP Photo/Hussein Malla)

A woman walks past a billboard that shows a graphic depicting a military personnel's hand holding the Strait of Hormuz in his fist with signs which read in Farsi: "In Iran's hands forever," "Trump couldn't do a damn thing," " The control of Strait of Hormuz will be Iran's forever," in Vanak Square, in northern Tehran, Iran, Thursday, April 16, 2026. (AP Photo/Vahid Salemi)

Relatives of Ghadir Baalbaki, 19, who was killed on Tuesday in an Israeli airstrike, mourn during her funeral in the southern port city of Tyre, Lebanon, Wednesday, April 15, 2026. (AP Photo/Hussein Malla)

Paramedics attach a portrait over the grave of Ghadir Baalbaki, 19, who was killed on Tuesday in an Israeli airstrike, at a temporary mass grave in the southern port city of Tyre, Lebanon, Wednesday, April 15, 2026. (AP Photo/Hussein Malla)

Backdropped by ships in the Strait of Hormuz, damage, according to local witnesses caused by several recent airstrikes during the U.S.-Israel military campaign, is seen on a fishing pier in the port of Qeshm island, Iran, Monday, April 13, 2026. (AP Photo/Asghar Besharati)

In this photo released by the Iranian Foreign Ministry, Pakistan's Army Chief Field Marshal Gen. Asim Munir, left, is welcomed by Iranian Foreign Minister Abbas Araghchi upon his arrival in Tehran, Wednesday, April 15, 2026. (Iranian Foreign Ministry via AP)

In this photo released by the Iranian Foreign Ministry, Iranian Foreign Minister Abbas Araghchi, right, meets with Pakistan's Army Chief Field Marshal Gen. Asim Munir in Tehran, Wednesday, April 15, 2026. (Iranian Foreign Ministry via AP)