It was really the first war when almost all of the fighting was hand-to-hand combat. Guerrilla warfare was introduced. The thick jungles hid the Viet Kong and the only way to flush them out was to send our soldiers in to a booby-trapped war zone. Plus, the country was a drug den and there was no limit to opiates, which our soldiers made ample use of to try and blot out the horrors of war.