The Civil War

In the 2080's, the intensity of Kyna and Matthias ' philosophies came to a head. Kyna believed in control of the undead, with proper guidance and fairness. However, Matthias' growing frustration led to him beginning an attempt on the extinction of undeath - and eventually planned to limit the possibility for spirits to exist at all.

This of course, led much of the religious and the allied undead to an outrage, which nearly led to some riots. The religious interpreted Matthias' growing fanaticism (If at all possible) to him wanting to destroy the very concept of a soul. It was a bit more complicated than that, but misunderstandings were abound. Even without the interpretation, this new campaign still threatened thousands of safe, docile undead who were just beginning to be looked upon as civilians in society.

Despite the philosophical disagreements, this was also a threat to balance. Ending undeath would have broken part of countless alternate realities, destroying an unthinkable amount of lives. This was one of the only times that other Gods offered their aid in order to stop this plan.

This eventually led to a split in the Vanguard and Shadowcrest armies. Most of the vanguard infantry was split, but the Templars remained with the Madgod, and Shadowcrest's equivalent, the "Praetoria " (Which were similar shadow-based, primarily female knights in Kyna's army) remained with Kyna. Kyna also had the advantage of summoned shadow-minions (Covered here, which the Madgod couldn't use because they would never attack each other, despite commands to do so. But the Templars were still a force against them, and was the primary reason Kyna feared the civil war.

Eventually, outright battles against each other did break out. It was mostly confined to the US's Eastern Coast, but it was very destructive. Thankfully it was not long-lasting. A few months in, Kyna challenged and eventually defeated the Madgod (Barely, always barely with him). Despite him surviving, the morale of the goal was lost and he conceded in his plans. Battle-zones were repaired, taking a few years to cleanup and all was moderately back to the way things were before.

He always states that he will certainly try again, but will take centuries or more of planning, now that he knows Kyna has enough power to stand against him. This makes makes of the undead population nervous, as they'll all be around to witness his second attempt and more.