It was 2010 when Sergeant Craig Grossi of the US Marines met a special furry friend during his second tour in Afghanistan.

Their outpost had just been attacked by the Taliban for days on end, and the Marines were out surveying the damage when they spotted a stray dog laying among the rubble.

war dog

Source: Craig Grossi / Facebook

Packs of stray dogs were not uncommon for them to see, and many were hostile towards humans, so they had strict orders not to interact with them.

But something about this dog was different. He was alone, and he wasn’t as bothered by the presence of the Marines as previous dogs they had encountered.