ORLANDO, Fla. (AP) — Sarah Rudder was on the verge of a key promotion in the U.S. Marines on Sept. 11, 2001, when the terrorist attacks struck and eventually left her without a leg.

But she has come back from that setback to thrive on another stage, winning seven medals through Tuesday in two days of Paralympic events ranging from rowing to shot-put at the international Invictus Games. The event was founded by Britain's Prince Harry for wounded members of armed services.

Rudder was unscathed in the Sept. 11 attack on the Pentagon and able to help others to safety. But when she returned to the defense complex to help remove remains of victims, her left ankle got stuck in a concrete barrier and was crushed. Her leg had to be amputated.