In the fall of 1969, Hubbard joined the Vietnam Veterans Against the War, and became an active organizer for the group. During the publicity generated by the April, 1971 anti-war protest march on Washington DC, Hubbard made claims about his rank during interviews that he later admitted were false. He was introduced on Meet the Press as a decorated Air Force captain who had spent two years in South Vietnam. After receiving a tip that Hubbard was a sergeant and not a captain, NBC contacted Hubbard about the discrepancy. Hubbard admitted to lying about being an officer, and publicly acknowledged it when he appeared on the Today Show the following morning. Frank Jordan, then Washington Bureau Chief of NBC News, recalls Hubbard's explanation for why he claimed to be an officer, "He was convinced no one would listen to a black man who was also an enlisted man." William Overend in the National Review reported that a Defense Department news release stated: "Alfred H. Hubbard entered the Air Force in October 1952, re-enlisted twice and was honorably discharged in October 1966, when his enlistment expired. At the time of his discharge he was an instructor flight engineer on C-123 aircraft with the 7th Air Transport Squadron, McCord Air Force Base, Tacoma, Washington. There is no record of any service in Vietnam, but since he was an air crew member he could have been in Vietnam for brief periods during cargo loading, unloading operations or for crew rest purposes. His highest grade held was staff sergeant." Defense Department officials stressed it was still possible Hubbard could have served in Vietnam, flying in and out from Tacoma. Historian and author of Home to War: A History of the Vietnam Veteran's Movement, Gerald Nicosia commented on the Hubbard military record controversy:
... service people doing covert missions, such as rangers going across the border in Laos, into North Vietnam, etc., never had those actions put into their records. Al Hubbard was on similar covert missions, flying in a supply plane to the French when they were fighting the Viet Minh in the fifties. It doesn't surprise me that those flights were not in his record. He did lie about being an officer, when he was a career sergeant, because the press kept paying more attention to his co-leader John Kerry, a decorated officer. Also, Hubbard never claimed to have been wounded in combat; his back was hurt when his plane crashed on a runway. When I interviewed him in 1992, he was on medical disability from the Air Force.
