MANNING A .50-CALIBER U.S. Navy Petty Officer 2nd Class Chris Noerjadi mans a .50-caliber machine gun and scans the horizon for enemy combatants during a general quarters drill aboard the amphibious command ship USS Blue Ridge in the Pacific Ocean, Aug. 26, 2008. Blue Ridge serves under Commander, Expeditionary Strike Group 7/Task Force 76, the Navy's only forward deployed amphibious force. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 923305-O-YKF95-712.jpg Photo Gallery