re: What are you top Ambush Scenes in the Movies or TV?

when i was at the Basic School as a young 2ndLt, we watched a movie clip prior to a class about night patrolling and setting in ambushes. it was a clip of a similar class of Marines repeating to the instructor "ambush is killing and killing is fun"

i have never been able to figure out what that clip was from or find it anywhere on the internet. mysterious.