In every era of conflict, whole new words and phrases have appeared: cold war, search and destroy, shock and awe, fog of war, brainwashing (called cognitive warfare today), and IEDs, among them.

The Cold War between democracy and communism was becoming more belligerent, and the United States and the Soviet Union possessed enough nuclear weapons to destroy the world many times over.

Search and Destroy. Agent Orange/Napalm. You would then need to briefly state how these tactics were intended to deal with the Vietcong. You could also refer to reasons why they failed to work ...