There were 6 unique South Vietnamese Presidents, 2 North Vietnamese presidents, and 5 different American Presidents, making 13 presidents altogether.
Although the war had been going on for years, US combat forces entered in 1965 and final withdrawal was in early 1975. That time period includes the terms of Lyndon Johnson, Richard Nixon, and a few months of Gerald Ford's administration.
But if you really mean presidents serving in the war, then none. Clinton managed to keep his student deferral. George W Bush served in the Air National Guard but was never called to active duty in Vietnam.
During the Vietnam War, Presidents Kennedy and then Johnson were democrats.
America entered the Vietnam war to stop the spread of Communism
i believe three Kennedy, Johnson, Nixon
JFK
44 president in vietnam
Presidents Eisenhower, Kennedy, Johnson, Nixon, and Ford supported South Vietnam. The Soviet and Red Chinese presidents supported their ally (with equipment)...North Vietnam.
The Presidents who served during the Vietnam War are usually Eisenhower to Ford.
There has not been a U.S President that served in Vietnam.
Truman had Korea; Eisenhower initiated Vietnam.
They allowed it to escelate, and they often micro-managed it.
During the Vietnam War, Presidents Kennedy and then Johnson were democrats.
The two presidents during the Vietnam War were JFK, and LBJ.