A young boy’s Make-A-Wish dream came true Monday when he got to visit the Pentagon and meet with Secretary of Defense General James Mattis and Joint Chiefs of Staff Chairman General James Dunford.

“This morning, #SecDef Mattis, @thejointstaff chairman #GenDunford & @USArmy Sgt. Maj. John Troxell welcomed Cooper Smith and his family to the #Pentagon. We’re happy to work with @MakeAWish to make Cooper’s wish come true. #KnowYourMil,” the U.S. Department of Defense tweeted Monday, along with a handful of pictures from Smith’s visit.

“#SecDef Mattis, chairman of @thejointstaff #GenDunford & @USArmy Sgt. Maj. John Troxell welcomed Cooper Smith and his family to the #Pentagon today. Cooper got a signed hat and football and took a tour. We’re happy to team with @MakeAWish to make his wish come true. #KnowYourMil,” the Department of Defense tweeted shortly after, along with more pictures from the memorable trip.

“Cooper loves the military, wishes he could serve,” Major Carla M. Gleason with Defense Press Operations told The Daily Caller. “He has a special place in his heart for troops who serve in areas of conflict, admiring them for risking their lives for us every single day without complaint. He feels that ‘keeping us free is the hardest and scariest job in the world, they should be the highest paid people in the country.’ And while he loves and supports all of the troops, Army will always be the favorite as mom is a Veteran. Beat Navy.”

Make-A-Wish is non-profit organization that grants the wishes of children suffering from serious illnesses. The organization’s motto is that a wish granted can be a game-changer for the kids.