In addition to his groundbreaking study, Grab Their Belts To Fight Them: The Viet Cong’s Big-Unit War Against the U.S., 1965-1966, Warren has written for a number of publications, including Vietnam Magazine, Desperta Ferro, and The Argentina Independent. Warren has also appeared on the “John Batchelor Show” and in the American Heroes Channel (formerly the Military Channel) documentary, “Warrior POV-Search and Destroy.” Presently, he is finishing a book about the 4th Infantry Division in Vietnam.