Intertimelinal World War.

With countless nations and powers at war there is no shortage of violence, and with a dozen timelines being the frontline, the sheer vastness of this war is unmatched, on one hand the Xanxon Empire, a large and bloated totalitarian imperialist state, hellbent on endless conquest, on the other, the Novo Alliance, a wild mix of allied powers ranging from the Galactic Republic to the Imperium Alliance, all generally cooperating to fight the aforementioned Xanxons, and on the third the Loose States, almost none are allied with each other and they range from the Tyrranids to The Chosen. Expect full blown invasions, eldritch abominations, reality-ending anomalies, all out trench warfare and frequent war crimes, plus a lot more.

Warnings;
This story contains very graphic depictions of war, death, sex, rape, terrorism, genocide, war crimes, racism, and many other extremely intense forces at play, I'll keep most of it as minimal as possible, but this is literally an Intertimelinal Pandemonium, what did you expect? This doesn't imply glorification, all of those are labelled under "Warnings" because they aren't exactly the greatest thing a person can do.