Fire emblem three houses the great Fódlan religion war

Ok so yeah the crusades. So basically I am not a Muslim but I am Asians and really don't get confused that Middle East is at Asia. so really when I notice rhea is a religious leader so I just say screw it i just make a fire emblem crusade. So really in the crusades there is about the religion between Muslim and Christian. So really I just want to make it cool and enjoy my stories that I made so here goes the story.

Fódlan is the peaceful place of the three houses until at the east. The Leicester alliance was under attack by the armies of the Almyra Sultanate. As lady Rhea heard about this threat. She then heard about it she then remembers the 1 war of Fódlan against Almrya. Kyl-zahir al-Din Abu the general of Almrya and son of the sultan was in charge of the invasion of the Leicester alliance. As rhea ask the empire and he kingdoms for help against the desert men who believes in their god. Thus the second war of the the religious wars of Fódlan begins.