2017 Defenders of Liberty Mud: A down, dirty, muddy good time Published April 5, 2017 By Senior Airman Mozer O. Da Cunha 2nd Bomb Wing Public Affairs A participant, crawls through a mud pit under a cargo net during the 2017 Defenders of Liberty Mud run at Barksdale Air Force Base, La., April 1. Mud run participants ran a four-mile course through tough terrain and water, conquering 20 obstacles along the way. (U.S. Air Force photo/Senior Airman Mozer O. Da Cunha)