Pentagon identifies two soldiers killed in Iran war

US Army Major Jeffrey O'Brien, 45, poses in an undated photograph in his uniform. O'Brien was killed Mar 1, 2026, at the Port of Shuaiba, Kuwait during a drone attack. US Army Reserve/Handout via REUTERS

The Pentagon on Wednesday identified two more soldiers who were killed in the war against Iran.

The two Army Reserve soldiers died on Sunday in a drone attack on a US military facility in Port Shuaiba, Kuwait that also killed four other reservists.

The Pentagon said Major Jeffrey O'Brien, 45, of Iowa, was killed in the attack and announced the "believed death" of Chief Warrant Officer 3 Robert M Marzan, 54, of Sacramento, California. Positive identification of Marzan will be completed by the medical examiner, the Pentagon said.

Both O'Brien and Marzan served in the 103rd Sustainment Command from Des Moines, Iowa, part of the Army's global logistics and supply operation.

The US military on Tuesday identified four soldiers of the same command who also died in the drone attack, marking the first casualties of the war.

The military identified the soldiers as:

Captain Cody A. Khork, 35, of Winter Haven, Florida

Sergeant 1st Class Noah L Tietjens, 42, of Bellevue, Nebraska

Sergeant 1st Class Nicole M Amor, 39, of White Bear Lake, Minnesota

Sergeant Declan J Coady, 20, of West Des Moines, Iowa

The announcement comes as the conflict intensifies, with US Defence Secretary Pete Hegseth saying on Wednesday that the US"can sustain this fight easily for as long as we need to."