DRAGON LOAD U.S and Canadian soldiers watch as a Navy MH-53E Sea Dragon helicopter carries a sling-loaded howitzer during training for Exercise Southbound Trooper IX on Blackstone Army Airfield, Fort Pickett, Va., Feb. 14, 2009. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 382084-D-NBD39-083.jpg Photo Gallery