TORONTO, ON - SEPTEMBER 23:  Opening ceremony of the 2017 Invictus Games at Air Canada Centre on September 23, 2017 in Toronto, Canada.The Invictus Games is the only international sporting event for wounded, injured and sick servicemen and Women (WIS). This year's games will bring together 550 competitors from 17 nations.  (Photo by Harry How/Getty Images for the Invictus Games Foundation)