Gunnery Sgt. Javier Vega pauses for a security halt while conducting perimeter security checks. U.S. Marine Corps Gunnery Sgt. Javier Vega pauses for a security halt while conducting perimeter security checks around a new combat outpost in Diwar, Afghanistan, on Dec. 18, 2010. Vega is assigned to Naval Mobile Construction Battalion 40. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 162829-I-SCG49-202.jpg Photo Gallery