LEATHERNECK ARRIVAL U.S. Marine Corps Maj. Gen. Richard Mills greets U.S. Defense Secretary Robert M. Gates as he arrives on Camp Leatherneck in Afghanistan, March 8, 2011. Mills is the commander of the 1st Marine Expeditionary Force and the International Security Assistance Force Regional Command Southwest. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 461744-K-OTQ15-018.jpg Photo Gallery