Actually it is not. Even though the North area of Vietnam is under China and very close to the North Asia as well, the whole country is considered to be in the South-East Asia. Moreover, in 1995, Vietnam became a member of ASEAN which is stand for Association of Southeast Asian Nations,this action indirectly confirmed that Vietnam and North Vietnam also are not in the North of Asia.
Asia
Vietnam and North Korea
China; North Korea; Vietnam.
No. First of all, Asia is not a country. Asia is a continent. It has many countries. Some of those countries are communist, but many of them are not.
Vietnam is geographically on the borderline of east asia and se asia. Vietnam is the only country in se asia that can also be categorically part of east asia. Vietnam's people and culture is east asian, but geographically located in the borderline of se asia/east asia.
Asia
North Vietnam=Air War South Vietnam=Ground & Riverine War
Vietnam and Laos. North Korea and China are also communist but are not in South-East Asia.
North East Asia and South East Asia respectively.
Vietnam
China, North Korea, Laos, and Vietnam.
Preventing Communist North Vietnam from conquering South Vietnam.