181005-N-YM720-1258 PEARL HARBOR (Oct. 5, 2018) Lt. Nathan Taag, assigned to the Arleigh-Burke-class guided-missile destroyer USS Chafee (DDG 90), competes in the Alpha Warrior Battle Rig fitness competition at the Hickam Memorial Fitness Center in Pearl Harbor. Alpha Warrior is a fitness training organization that offers challenging, modern fitness through obstacles and mental endurance. (U.S. Navy photo by Mass Communication Specialist 2nd Class Allen Michael McNair/Released)