Once upon a time, on the not-so-magical planet Earth. There was a US Marine who signed up to defend his country. He was assigned to a fire team, the fire team assigned to a squad and the squad assigned to a company. Together they defended the area surrounding a Forward Operating Base in Afghanistan from insurgents. If only it were that simple.
When lone Marine is transported to Equestria only he finds a post-apocalyptic wasteland. With no orders, no resupply and seemingly no hope of return, he sets out to find what brought him here, and why.
Strong Language Warning: He swears like a Marine.
Disclaimer: I'm not a Marine