When was south vietnam invaded by north vietnam?
North Vietnam had been infiltrating into South Vietnam since the 1950’s. During the 1960’s the troop movements were now more noticeable. Actual invasions resembling WWII, occurred in 1972 (in which US B-52 Bombers turned them back), and the North’s final invasion in 1975 (in which the B-52’s had been withdrawn) which won them the war.
