Twelve-year-old Nathan Aldaco was diagnosed with rare heart disease at a young age, but that hasn’t slowed him down. Last year, Nathan and his family were contacted by the Make-A-Wish Foundation, which asked Nathan to give a list of things he would like to do.

Topping Nathan’s list was to wear a uniform, ride in large military vehicles, be a part of a medal ceremony, and train with Marines. according to a Department of Defense press release.

In short: He wanted to be a Marine.

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Nathan Aldaco, a 12 year-old boy with hypoplastic left heart syndrome, walks with Marines to a demolition site during a Make-A-Wish event supported by 7th Engineer Support Battalion, 1st Marine Logistics Group, at Camp Pendleton, California on March 24, 2016. U.S. Marine Corps photo by Sgt. Laura Gauna
Nathan Aldaco, a 12 year-old boy with hypoplastic left heart syndrome, walks with Marines to a demolition site during a Make-A-Wish event supported by 7th Engineer Support Battalion, 1st Marine Logistics Group, at Camp Pendleton, California.

On March 24, at Marine Corps Base Camp Pendleton, Nathan had the chance to do just that when Marines with 7th Engineer Support Battalion welcomed Nathan as an honorary devil dog.

Rocking a tailor-made combat uniform, flak, and kevlar, Nathan road in a MRAP vehicle, drove a bulldozer, watched explosive ordnance disposal Marines detonate TNT, C4, dynamite and blasting caps, and had a chance to control a bomb-disposal robot.

At the end of the day, Nathan was awarded the Master EOD badge, a distinguished award in the EOD community typically issued after 7 to 15 years of service.

Nathan Aldaco, a 12 year-old boy with hypoplastic left heart syndrome, stands at attention as Col. Jaime O. Collazo pins on the Master EOD badge during a Make-A-Wish event supported by 7th Engineer Support Battalion, 1st Marine Logistics Group, aboard Camp Pendleton, CaliforniaU.S. Marine Corps photo by Sgt. Laura Gauna
Nathan Aldaco, a 12 year-old boy with hypoplastic left heart syndrome, stands at attention as Col. Jaime O. Collazo pins on the Master EOD badge during a Make-A-Wish event supported by 7th Engineer Support Battalion, 1st Marine Logistics Group, aboard Camp Pendleton, California

“It was a great opportunity,” said 1st Lt. Ernesto Gaudio, a platoon commander with Bravo Company, 7th Engineer Support Battalion. “First of all it was good for Nathan. I hope it was also good for the Marines. I think it touched a lot our hearts. I will certainly never forget today or Nathan and his family. I got emotional at the end but, hey, we are human beings. We are Marines but we are human.”

Nathan has undergone numerous surgeries for his condition, a rare congenital heart defect called hypoplastic left heart syndrome, that left his heart severely underdeveloped.

When asked what his favorite part of the day Nathan said, “The bombs were cool. I like working with the robots. It was fun controlling them and picking stuff up with them.”