WASHINGTON, March 3 (Reuters) - The U.S. military on Tuesday identified four of the first American soldiers killed in the war against Iran.The U.S. Army Reserve soldiers, from the 103rd Sustainment Command out of Des Moines, Iowa, were:* Capt. Cody A. Khork, 35, of Winter Haven, Fla.* Sgt. 1st Class Noah L. Tietjens, 42, of Bellevue, Neb.* Sgt. 1st Class Nicole M. Amor, 39, of White Bear Lake, Minn. * Sgt. Declan J. Coady, 20, of West Des Moines, Iowa (Reporting by Phil Stewart and Idrees Ali; E...