Major General Ray Davis took command of the 3d Marine Division in May 1968
When he took command in May 1968, much of the 3d Marine Division was tied down to combat bases, places like Vandegrift and Camp Carroll. They were part of the “McNamara Line” conceived to shut down enemy use of the Ho Chi Minh Trail. And according to Davis this simply wasn’t working. Marine battalions were being pulled back into defensive positions at the combat bases at night. This, he felt, was contrary to the way Marines think. Marines attack. They don’t hunker down. He saw combat being broken off when nightfall was eminent so that combat bases could be manned.