Invictus games get underway in Orlando

ORLANDO, Fla. - "Invictus" means "unconquered" in Latin, which is a fitting title for the international competition of wounded warriors, now underway in Orlando, Florida. The competition is the brainchild of Britain's Prince Harry.

Today, forty year old retired Marine Sgt. Anthony Rios was in top form during a practice run of wheelchair rugby. Six years ago he was hit while on a combat mission in Marjah, Afghanistan.

"I thought to myself, oh man I lost my leg," Rios said.

Rios's leg was saved, but he suffered a brain injury from the blast and had to learn to walk again.

"This is a way to keep who you are now, who you've developed and tie together the great things you did in your life ," Rios said.

With Olympic style fanfare, Prince Harry warmly welcomed the five hundred competitors from fifteen nations in Orlando last night.

"It is not just physical injuries that our Invictus competitors have overcome," he said. "Every single one of them will have confronted tremendous emotional and mental challenges."

"It's been a bumpy rode to get to this stage," Prince Harry said.

Prince Harry on Invictus Games 2016, Princess... 06:40

CBS This Morning co-anchor Norah O'Donnell sat down with Prince Harry to talk about the games.

"What do you think your mother, Princess Diana, would think about what you've done here for veterans," O'Donnell asked?

"I'd hope she'd be incredibly proud. I would love it I she was here," Prince Harry said. "I'm sure she would be running around causing chaos like I intend to."

"And very proud of you," O'Donnell said.

"Yeah, I hope so," Prince Harry said.

This week, Rios and his fellow athletes will show it's not their injuries, but their determination to overcome them that defines who they are.

"Because I don't suffer from it. When I wake up in the middle of the night and I can't sleep I jump up on my pull-up bar that's in my bedroom," Rios said. "I use that energy and i continue to use it."