When a land dispute arises between Equestria and the griffon lands of Queen Walarah, Walarah declares a mock war to settle the dispute. Due to circumstances beyond their control, Apple Bloom, Sweetie Belle and Scootaloo end up taking Apple Jack & Rarity's place in the battle roster, forcing them to design and build their own machine of war.

Vector compliments of http://dolphinfox.deviantart.com/

Salt is a terrible substance. Once a pony starts licking it, they can't stop.
It takes a truly brave soul to leave it behind...

This is an Anonymous in Equestria story. Please demonstrate your ability to read by not pointing it out an infinite number of times in the comment section. Thank you.