Prince Harry's Invictus Games are in full swing in Vancouver and Whistler, Canada, and Team U.S. athletes exclusively tell PEOPLE about what the event means to them.

Prince Harry and Meghan Markle had a special surprise for the Invictus Games participants ahead of the big kick-off.The Duke and Duchess of Sussex joined the competitors for breakfast and

Earlier this year, Meghan Markle made her return to Instagram after a five-year absence, posting her first video on her @meghan account on January 1. Now, Meghan is taking her camera behind the scenes at the Invictus Games—where she and Prince Harry made their debut as a couple, in 2017.