For one, they had some alignment with the Khmer Rouge (although that didn't last, as ideological conflicts developed between the Soviet-backed North Vietnamese and Chinese-backed Khmer Rouge), but they also used the border regions of Cambodia for much of their supply routes, thus circumventing both the DMZ and the interior of South Vietnam.
They had the MiG-21PFM.
North Vietnamese đồng ended in 1978.
North Vietnamese đồng was created in 1946.
North Vietnamese are inhabitants of North Vietnam, while Vietcong are Vietnamese warriors during the Viet war.
Agent orange
NVN=North Vietnamese Navy NVAF=North Vietnamese Air Force NVA=North Vietnamese Army
The North Vietnamese Navy had Patrol Torpedo Boats; the South Vietnamese Navy countered with (US) Swift Boats.
North against South Vietnamese.
North Vietnamese invasion of Laos happened in 1959.
North & South Korean Armistice (Truce) in 1953. North Vietnamese Victory in 1975.
What happened to the NORTH Vietnamese? Or what happened to the SOUTH Vietnamese people?
North Vietnamese money or South Vietnamese money? There were two countries.