Soldiers from Charlie Troop, 1-303rd Cavalry, 81st Brigade Combat Team built teamwork and muscles during a friendly competition through Fort McCoy's obstacle course on Sept. 11. The three-man teams navigated through water and mud, over logs and walls, under barbed wire and across monkey bars and ropes. They also integrated in weapons maintenance, radio communications and medical assistance. Soldiers averaged 30-45 minutes to complete the course. "It was wet, muddy, cold and actually pretty fun," said Spc. Mark Kehoe. The Washington Army National Guard's 81st BCT trained at Fort McCoy, Wis., for approximately six weeks before deploying to various bases across Iraq in support of Operation Iraqi Freedom.