Answer:
Colonialism
Step-by-step explanation:
In 1887 French developed a colonial system in the regions of Vietnam and named it French Indochina.
Resistance start to erupt from the HoChiMinh and his colleagues from the 1930's, who established Viet Minh (League for independence of Vietnam). HoChiMinh declared Independence of North Vietnam in 1945 based his model of declaration on the
Declaration of independence of America but the move does not go well as the United States saw it as a comm-unist dom-inance which they would not allow and their support to the Southern Vietnam to resist the Northern forces and increase the influence of the United States in far east.