Based on the map, why would american military planners want to invade cambodia? a) to reinforce protection of saigon by creating a buffer zone b) to escalate the war by involving neighboring countries c) to stop the viet cong from using a supply route d) to have exclusive access to the mekong river**the answer to this question is:   c)  to stop the viet cong from using a supply route**comment it down below to get points!