Finishing a 10-day course so difficult that his prosthetic leg broke twice, Sgt. 1st Class Greg Robinson became the first amputee to complete Army air assault school. Robinson lost his right leg below the knee in Afghanistan in 2006. "As a leader, I didn't want to tell my soldiers that they needed to go to air assault school if I am not air-assault-qualified," said Robinson. "It's not a disability if you don't let it slow you down."