Bayzantine and Equestria have long been estranged over a disagreement on religious matters. But when the holy city of Jerustallion is besieged by the thrice-accursed Moohamadens and even the great city of Coltantinople is threatened they put their differences aside. Shining Armor is called upon to lead a great crusade to drive back the infidels, save the Empire and defend the True Faith.
(Warning contains rampant, unapologetic Islamaphobia, pan-European nationalism, Alicorn Shining Armor, ridiculously overpowered alicorn OC's and ponified Crusades. Might be the most politically incorrect story ever conceived.)