A soldier slithers through a sand pit on the Air Assault School obstacle course at Fort Bragg A U.S. Army soldier slithers through a sand pit on the Air Assault School obstacle course at Fort Bragg, N.C., on Sept. 19, 2013. Air Assault School is a 10-day course that consists of three phases and a 12-mile foot march that must be completed before graduation. SHARE: Download: Full Size (0.07 MB) Tags: military services, news photos, other subjects, lead photos, dod organizations, army Credit: VIRIN: 112534-L-OTS05-199.jpg Photo Gallery