The Pentagon has released the names of the U.S. Army Reserve soldiers killed during the ongoing war with Iran. The six service members died when an Iranian strike hit a tactical operations center in Kuwait.

The Defense Department identified them as:

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

Sgt. 1st Class Noah L. Tietjens, 42, of Bellevue, Nebraska

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

Sgt. Declan J. Coady, 20, of West Des Moines, Iowa

Maj. Jeffrey O’Brien, 45, of Waukee, Iowa

They died Sunday in Port Shuaiba, Kuwait, during an unmanned aircraft system attack, the Defense Department said.

The Pentagon also announced Wednesday the name of the sixth Army Reserve soldier who it said “is believed to be the individual who perished at the scene” in Kuwait, and that positive identification will be done by the medical examiner. CBS News is not naming the soldier until they are positively identified.

The soldiers were all assigned to the 103rd Sustainment Command based in Des Moines.

We honor our fallen Heroes, who served fearlessly and selflessly in defense of our nation. Their sacrifice, and the sacrifices of their families, will never be forgotten,” Lt. Gen. Robert Harter, chief of the U.S. Army Reserve and commanding general of the U.S. Army Reserve Command, said in a news release Tuesday

To the families and teammates of these Cactus Nation Soldiers: you have my deepest sympathy and my respect,” said Maj. Gen. Todd Erskine, commanding general of the 79th Theater Sustainment Command. “Our nation is kept safe by folks like these brave men and women who put it all on the line every single day. They represent the heart of America. We will remember their names, their service, and their sacrifice.”