Question

what was one of richard nixons strategies for ending the vietnam war?
preventing bombing outside of vietnam so that the war would not escalate to other countries
training and supplying the south vietnamese to take over full responsibility for the war
limiting troops to positions south of an imaginary line between the two countries
agreeing to pay reparations to north vietnam for civilian deaths

Explanation:

Nixon's Vietnamization policy involved training and supplying South Vietnamese forces to gradually take over combat operations from U.S. troops. This was a key strategy to end U.S. involvement in the Vietnam War. Bombing was actually expanded into neighboring countries like Cambodia (contradicting the first option). There was no such "imaginary line" troop - limiting strategy as described in the third option. And the U.S. did not agree to pay reparations to North Vietnam for civilian deaths (fourth option).

Answer:

training and supplying the South Vietnamese to take over full responsibility for the war