The official caption reads; MEKONG DELTA, Vietnam -- An Air Force crew from the 211th Helicopter Squadron fly on a combat assault mission July 18, 1970 in a UH-1 Helicopter over southeastern Asia. You can see the original photo here.

If you'd like to see more photos of the Vietnam War, take a look at The Boys of '67 Facebook page, where author Andrew Wiest is building up quite a community of Vietnam veterans and people interested in the conflict.