So many great options.
Evil
Bad Guys
Supervillainy
Capitalism
Socialism
Marxism
Communism…Wait, we already did that one
Magic
Ghosts
Skullduggery
Those meddling kids
Multi-Domain Operations
Network-Centric Warfare
Any doctrinal concept developed by the Department of Defense
Sin
Anti-Terrorism
Wars
Drugs...Wait, we already did that one, too
Wars on Terrorism
Wars on Wars on Terrorism
Wars on Anti-Terrorism
Crime…That one, too, huh?
Space Ghosts
Bayesian Inference
The Münchhausen Trilemma
That feeling you get when you go into another room to get something but then you forget what it was until you go back to where you were and sit down again
The F-35 Joint Strike Fighter
The Deep State
Christmas (Many sources claim this war has been ongoing for decades, but the U.S. officially denies involvement)
Wars on Christmas (See comment above. Sources claim the entire War on the War on Christmas is a CIA front meant to perpetuate the Deep State’s War on Christmas)
Anything including the word “Cyber”
Poverty…What? We already did that one, too?
Necromancy
Space-time
Space-crime
Cyberspace-crime (Technically covered by “Anything including the word ‘Cyber’”)
Cyberghosts (See comment above)
Fascism… We already did that one, but it could be fun to give it another go
Solipsism
Big Tech
Anthropomorphic Crime-fighting Sharks
Anthropomorphic Cybercrime-fighting Sharks (See comment above)
King George III
Dat Ass
Nebulas
Sterile Neutrinos
Ghosts, Underwater/Amphibious
Anything written by James Joyce
Ah, fuck it, let’s just go to war with terrorism again.