Into the Mixer Air Force Col. John Klein, commander of the 60th Air Mobility Wing, pours concrete into the mixer during the Works With Airmen program at Travis Air Force Base, Calif., Aug. 19, 2016. Air Force photo by Louis Briscese SHARE IMAGE: Download Image: Full Size (0.76 MB) Tags: training, AIR FORCE, Airmen Photo By: Louis Briscese VIRIN: 160819-F-LI975-247A.JPG Photo Gallery