So a quick summary of where I thought the story would go:
Soldier, of course, would be summoned by accident. But without any time to make corrections, the Mane 6 just loads him up with snacks and blankets before heading off. Soldier is teleported into Ponyville, where hijinks ensue as his American sensibilities are offended by the ponies more pacifistic lifestyle.
Live Wire by AC/DC?
breaking down borders purely because of the guitar
my second choice would be the short change hero because of the meaning of the vocals
THIS THING
[youtube=UtgnvGqqRX0]
Except replace Annie with Charlie and then Smooth Criminal with C'thulhu as well as stuck down by with stolen by
And so on so forth