Otto Lehrack served with the U.S. Marines for 24 years as an enlisted man and officer. He was an infantry company commander during the Tet Offensive on his first tour (1967–1968), and the operations officer of a signal intelligence battalion on his second tour (1970–1971) in Vietnam. He has an MA in history from the University of Hawaii at Manoa. Lehrack is the author of No Shining Armor: The Marines at War in Vietnam and America's Battalion: Marines in the First Gulf War.