US Army Green Beret John Wayne Walding earned his Purple Heart Medal during a battle of Shok Valley in Nuristan, Afghanistan in 2008. It has put a great impact on his life when his right leg got amputated due to an injury from the operation. However, it did not stop his mission for the military. He went on to attend the U.S. Special Forces Sniper School before becoming the first amputee to become a Green Beret certified sniper and then a Green Beret sniper instructor. He also co-founded Live to Give, an electrolyte-enhanced bottled water company that donates half of all profits to military and first responder-related charities.