The US-Iran war took its deadliest turn for American forces in months over the weekend, with three US service members killed and a fourth still missing after Iranian missile and drone attacks on a base in Jordan and a related incident in Iraq — pushing Washington into a fresh, intensified round of retaliatory bombing that shows no sign of slowing.
What Happened
Friday, July 17: Iran’s Islamic Revolutionary Guard Corps (IRGC) launched a barrage of ballistic missiles and drones at Muwaffaq Salti Air Base in Jordan, a facility hosting a significant US military presence. Satellite heat-signature data placed the impact in the area of personnel living quarters, and video of the strike suggests it came with little to no warning, with service members scrambling for shelter. Pvt. Isabella Gonzales, 19, of Carrollton, Texas — assigned to the 1st Battalion, 57th Air Defense Artillery Regiment, based in Ansbach, Germany — was killed in action defending the base against the incoming barrage.
Saturday, July 18: A second attack hit the same base. 1st Lt. Tyler James Feehan, 25, of Ewa Beach, Hawaii — assigned to the 2nd Battalion, 55th Air Defense Artillery Regiment, based at Fort Bragg, North Carolina — died of wounds sustained in the strikes. It was the second direct hit on Muwaffaq Salti in as many days, part of four separate Iranian attacks on US forces in Jordan over five days. Four additional soldiers were medically evacuated to hospitals in Jordan; all have since been discharged and returned to duty.
Sunday, July 20: A third American service member was confirmed dead — this time in northern Iraq, following what US Central Command (CENTCOM) described as “a controlled detonation of unexploded ordnance from a downed Iranian one-way attack drone.” A fourth service member remains missing after the Jordan strikes; unidentified remains have been recovered at the base, but the Pentagon has not yet confirmed whether they belong to the missing soldier.
Secretary of State Marco Rubio told reporters before departing for the Philippines that US and partner air-defense systems “shot down almost all the missiles” fired at the base, but that “one leaked through, hit the wrong place, and tragically” caused the casualties. The Pentagon says the incidents remain under investigation, and has not yet released a full account of exactly how each soldier died.
The Toll So Far
These deaths bring the total American combat death toll in the Iran war to 17, with a further service member having died in a non-combat incident in Kuwait and hundreds more wounded since fighting began in late February. Earlier losses in the conflict include six troops killed in an Iranian attack on a base in Kuwait, six killed when a refueling aircraft crashed in Iraq, one killed in a strike on Prince Sultan Air Base in Saudi Arabia, and a Navy pilot who died after his helicopter made an emergency landing at sea.
On the Iranian side, the human cost has been far steeper. Iran’s Ministry of Health says at least 50 people have been killed and more than 500 injured inside the country since the US resumed its bombing campaign in early July — on top of the thousands killed during the initial phase of the war in February and March.
Washington’s Response
President Trump said the fresh wave of US strikes carried out over the weekend was launched “in honor” of the fallen troops, and Defense Secretary Pete Hegseth posted on social media, “Godspeed, heroes… Their sacrifice only stiffens our resolve.” The strikes mark the ninth consecutive day of US bombing against Iran since a fragile ceasefire and follow-on Memorandum of Understanding (MoU) collapsed in a dispute centered on control of the Strait of Hormuz.
Trump formally notified Congress on July 10, under the War Powers Resolution of 1973, that hostilities with Iran had resumed — a move the administration argues opens a new 60-day window for military action without further congressional approval, since the earlier ceasefire had technically “terminated” the prior authorization. The administration describes the current strikes as “limited, measured, planned, and executed in a manner designed to minimize civilian casualties,” aimed at Iranian military capabilities threatening US forces and commercial shipping through the strait.
Trump has also framed the campaign in more sweeping terms, saying US strikes have “knocked out” Iran’s navy, air force, missile capabilities, and drone manufacturing, and comparing the conflict favorably to Vietnam: “We were in Vietnam for 19 years. We’re here for four months, so I think we’ve done a lot.” He has separately said the US should be recognized as “the guardian of the Hormuz Strait” and receive compensation for securing it — a claim Iranian Foreign Minister Abbas Araghchi rejected, insisting Iran has “always been the guardian” of the waterway and “will remain so forever.”
Congressional Pushback
The renewed casualties have reignited a fight in Washington over whether Trump has the legal authority to continue the war without a new congressional vote. Both the House and Senate passed War Powers Act resolutions last month aimed at restricting Trump’s ability to continue hostilities, though neither has forced a halt. Senate Democratic leader Chuck Schumer and Sen. Adam Schiff have both criticized the administration’s position that it has a fresh 60-day window, with Schiff calling the claim baseless: “Any assertion by the Trump Administration that he gets 60 more days to act without Congress has no foundation in law.” He added that in the space of days, “we’ve gone from a bad U.S.-Iran deal to more strikes, another blockade, and added turmoil that will only drive prices higher.”
A House Democrat, Rep. Gabe Amo, has called the campaign “a war of choice” launched “without clearly defining its scope, timeline, or objectives and without presenting a credible day-after plan.” Republican Rep. Thomas Massie of Kentucky, a longstanding critic of the war, has also voiced opposition, though it remains unclear how the broader Republican caucus will respond to the latest deaths. Earlier attempts in March to force an end to US involvement failed largely along party lines in both chambers.
The Strait of Hormuz Remains the Core Dispute
The renewed fighting traces directly back to a breakdown over the Strait of Hormuz, the narrow waterway through which roughly a fifth of the world’s oil passes. Iran closed the strait again amid the latest escalation, and the US has reinstated both a naval blockade on Iranian ports and Treasury sanctions on Iranian oil sales. Analysts note that the ambiguous language in the original MoU — which called on Iran to “make arrangements” for safe passage rather than clearly barring Iranian control of the waterway — left room for exactly the kind of dispute now driving the conflict’s reescalation.
What Comes Next
Trump has warned that further “major” strikes are likely, and CNN and other outlets have reported that his rhetoric has increasingly included threats to hit Iranian infrastructure such as bridges and power plants — actions legal scholars describe as potential violations of international humanitarian law if civilian infrastructure is deliberately targeted. Iranian officials, for their part, have warned of a “full-scale offensive” if US strikes continue.
With no diplomatic off-ramp currently in view, the immediate variables to watch are whether Iran continues targeting US bases in Jordan, Kuwait, and Qatar, whether oil markets — already up sharply on strait closures — face further shocks, and whether congressional pressure builds enough, on either side of the aisle, to force a binding vote on US involvement.
