I came across some very rare footage of Robin Williams reacting to troops who turned their backs on him during 'retreat' at a military base in Kuwait in 2007. How he reacts is priceless.

The clip you are about to see what originally sent in to David Letterman who aired the video in 2007. As you'll see, Williams is immediately humble to what is taking place even though he has no idea what is happening.

His reaction and response are what made Robin Williams, Robin Williams!  I won't explain what "retreat" is if you don't know; you'll learn by watching the video.

Hope you enjoy this as much as I did...

Author's Note 8/13At the time of writing I was not aware of the Letterman airing. When I changed the story before publishing I inadvertently failed to correct the other areas.