Prince Harry's son Archie, who turns 3 on May 6, and his 10-month-old daughter Lili may not be accompanying Prince Harry and his wife Meghan Markle to the Invictus Games in The Hague, Netherlands, but Harry showed in his speech last night that his children were on his mind.

At the opening ceremony of last night's games, Harry elaborated on Archie's myriad career aspirations. Harry laughed and added, "When I tell my son Archie what he wants to be when he grows up, one day he's an astronaut, another day he's a pilot, a helicopter pilot, obviously an octonaut quazi," and "if you're laughing you've seen it."

"But I would remind him that no matter what you want to be when you grow up, the most important thing is your character. Nothing would make his mother and me more proud than to see him have the kind of character that we see before us today," he told the assembled crowd. He told PEOPLE magazine that Invictus Games competitors have "overcome immense odds" and are "healing and teaching the world as they go."

Prior to Harry's speech, Meghan thanked the Netherlands for hosting the Games to the crowd.

"My husband and I recognize that it was physically and mentally difficult for each team to get here. Because here at the Invictus Games, we honor your years of active service on the field and your continued service off the field to your country, your families, and your communities."

Meghan and Harry shared a kiss on stage as Meghan said, "I couldn't love and respect him more."