LOS ANGELES, March 4 (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 U.S. 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 M...