[@OneEyedChurro]

Whether or not the Azracs eventually won the war after losing that city is up to you; it would impact your nation's history much more than mine, though, as successfully pushing that claim would result in an Azrac king over either Arman.

In either case, I have an idea. While Arman was being invaded, their allies Arhus came to the rescue by mounting a counterattack against the invaders' lands that eventually resulting in that one city being razed. However, once the Dominion of Terus got pulled into the war to support that tiny little independent state, they were reluctant to waste thousands of lives and countless amounts of money and effort in order to equip an army big enough to defeat the formidable Arhusians in open battle. So they resorted to skulldoggery like guerrilla warfare and assassinations to chase out the Arhusian army before it managed to do much further damage. They doubtlessly would have used the Tarzaks for such work, which would probably lead to the Terusite military gaining a reputation as being devious.

[hider=The Tarzaks, an excerpt from my sheet][i]The Tarzak Tribe[/i] - 
The famous Tarzak Night Raiders, as their warriors are called, are a living legend. They earned their name and achieved this fame more than three centuries ago, when a great lord demanded an oath of loyalty from their chieftains, the ability to make use of their valley's natural resources, and the right to tax the tribesmen. The Tarzak's high chief replied by sending a parcel of tiger feces. Enraged by this insult, the lord declared war, raised a large levy, and moved to conquer the Tarzak. The issue was that the Tarzak had no true settlements, the lord's army marching in circles through a rainforest taking massive attrition in the hopes of finding a chance to engage the entirety of the much smaller army of the Tarzak's and win a decisive battle. The Tarzak never gave them that chance, preferring to stalk their enemies through the jungles in small groups and ambush at any opportunity.

Reinforcements streamed in as more levies were called as needed, and this dance stretched on for a period of months. Eventually the army was forced to  retreat from the forest and plan for another invasion, as the harvest time came and the levies were needed on the farms. Stopping to rest in a castle on their way home, the army was utterly unaware that hundreds of Tarzak hunters had followed them out of the forest. At night the came, silently assassinating the watchmen with their bows and then scaling the castle's battlements in the dead of night. The Tarzak then proceeded to set fire to the wooden keep full of sleeping soldiers. It is said that the Tarzak's chieftains laughed as their enemies burned alive, some jumping off the battlements to their deaths. Those that made it to the gates and escaped the blaze, the lord himself amongst them, were quickly captured. As the legend goes, the Tarzak executed every last one of the survivors, leaving their heads in a gruesome pile before returning to their foreboding jungle.[/hider]

Whether the Azrac guy invading Arman was successful during this (somewhat) failed campaign by the Arhusians would be up to you to decide.