By Friday afternoon, the video posted on the Facebook group U.S. Army W.T.F.! moments had 1.5 million views. Warning: strong language:
The scene starts serenely as equipment is dropped by parachute April 11 from planes with the 173rd Airborne Brigade flying across blue skies until the first Humvee breaks free and drops and someone yells out "Oh yes!"
It's followed by a second, then a third and increasing laughter on the video.
The Army says nobody was hurt, and it's investigating what went wrong - and who shot the video.