Why was there a movement called vietnamization?

There is a movement called Vietnamization because of the fact that this is the policy in ending the United States to be associated or to be involved in the war of Vietnam by means of producing a program that will train, expand, and equip the forces of the south Vietnamese.

It was an idea to have the people fight their own war

Explanation:

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.