Army Sgt. Dennis Cosgrove participates in the 2014 Army Reserve Medical Command's Best Warrior Competition on Fort Harrison, Mont., Feb. 27, 2014. Cosgrove represented the Southeast Medical Area Support Group in Nashville, Tenn. Army Sgt. Dennis Cosgrove participates in the 2014 Army Reserve Medical Command's Best Warrior Competition on Fort Harrison, Mont., Feb. 27, 2014. Cosgrove represented the Southeast Medical Area Support Group in Nashville, Tenn. SHARE: Download: Full Size (4.37 MB) Tags: photo essays Credit: VIRIN: 427358-Z-YMO76-268.jpg Photo Gallery