“While you don’t need children to have a stake in the future of our planet, I do know that my mother would have been horrified that anyone’s children or grandchildren would live in a world still infested with mines,” Prince Harry said, per Us Weekly.

Harry, who traveled to New York without Meghan Markle, said Princess Diana’s legacy is “extremely important,” as he talked with award recipients on Monday.

"My mother would have been horrified that anyone’s children or grandchildren would live in a world still infested with mines.”