Donny Eslinger was a soldier in Afghanistan.
One day, he found a tiny little puppy wandering the streets and bought him for three cigarettes.
After him carrying out in his backpack, the two were inseparable, sharing their meals together and living back at Donny's checkpoint.
Then one day, Donny was caught in a mortar blast and received a puncture wound to the chest, head injuries, several broken ribs and lost his spleen.
When he was rushed to a military hospital to undergo life saving procedures, his dog, Smoke, was left behind!
Eventually Donny was moved back home and received a purple heart from President Obama.
He is now recovering at a hospital in Maryland.
After five months of trying, his fellow soldiers were able to finally get Smoke back to the US.
So Donny's dad surprised him with a visit to the hospital, and brought a special friend with him.
His dad said:
"This dog Smoke will help him heal even faster. He's a strong kid and he's done remarkably well."
Donny is expected to make a full recovery.
Yay! Happy ending!