U.S. Marine with the 3rd Battalion, 4th Marine Regiment participate in Integrated Training Exercise (ITX) 3-1 at Twentynine Palms Marine Corps Base, Calif., Jan. 22, 2013.
The ITX provided predeployment training for Marines. (DoD photo by Staff Sgt. Stephany Richards, U.S. Air Force/Released). Original public domain image from Flickr