U.S. Army soldier Sgt. Matt Krumwiede was on patrol in Afghanistan in June of 2012 when he stepped on an improvised explosive device (IED). The explosion tore away both his legs, damaged his left arm, and ripped open his abdominal cavity. The 22-year-old has since undergone around 40 surgeries and is learning to walk with prosthetic legs. He is keen to re-join the infantry as soon as his injuries allow.