A year during the Age of Conjunction.
The chaos after the conjunction spills into the next year. War ravages the lands after most of the monsters are slain or imprisoned. While not all of the nations war with their new neighbors, a large portion of them fight for control over land claimed by multiple nations. Some countries form aliances, but then use those aliances to fight more wars. All is chaos. Much of who or what nation did anything is undocumented. The focus was on surviving and laying claim to resources.
In Kirth, a war started between the Kaelithicans and the Planesmen over land. This war was bloody but the Kaelithican's superior technology pushed the Planesmen back. The battles raged for years.