Vietnamization

Short definition from Wiktionary

Noun

1. 1
   The process of becoming more Vietnamese.
2. 2
   Especially, the U.S. government policy of reducing American involvement in the Vietnam War by replacing American troops with Vietnamese troops.
3. 3
   A growth of cynicism, disenchantment or belief in corruption such as the American citizenry experienced over the course of the Vietnam War.