There's no one left, the young guardspony realized. The Princesses, the Elements of Harmony, even the rest of the Canterlot Guard has been captured by the Changeling horde. But he will stand for Princess and Country, and he will fight and die to protect what remains.

One shot.
This idea came after playing Reach. It may or may not culminate into a few one shots about an alternate reality where Chrysalis properly researches the pony she's impersonating.
Experimental, so tell me what you think.