 The jeep he rode in prior to his death had a flag wrapped around a pole that was unidentifiable.On the night of September 24–25, Capt.Joseph R. Coolidge IV, part of the OSS team in Saigon, became the first post-World War II U.S. casualty in Vietnam when he was shot and critically wounded in a Viet Minh ambush in Thủ Đức, outside of Saigon.