Photo 1 – By Sgt. Robert F. Witowski, USAF [Public domain], via Wikimedia Commons

Photo 2 – By USMC Archives from Quantico, USA (“The Womb”, Khe Sanh, 1968) [CC BY 2.0], via Wikimedia Commons

Photo 3 – By USAF [Public domain], via Wikimedia Commons

Photo 4 – By Icemanwcs (Own work) [CC BY-SA 3.0], via Wikimedia Commons

Photo 5 – By US Army Military History Institute (US Army images) [Public domain], via Wikimedia Commons

Photo 6 – Donald Jellema Collection – Vietnam Center and Archive