If all religion was banned across the world for a full year and the rule was seriously enforced?

Pandemonium as we know it. I can see most Christians temporarily teaming with Mormons and JWs. Some members of some religions would stick to themselves, like ISIS. They’d still attack everyone, probably. Moderate Muslims might make an uneasy alliance with Christians, but I can’t see Jews joining. They’ll stick to themselves. I don’t even know if the more peaceful religions like Buddhism would fight, but there’s a valid chance.

Either way, you now have slightly over half the word population determined to overthrow you. Some are in control of vast military resources. One of the best air forces in the world is now against you. If all religious people went on strike and rebelled, almost every nation’s infrastructure would be seriously crippled. Come to think of it, the US would lose a large part of its army. A huge part. And many other countries.

Oh, and this isn’t even counting the Atheists and Agnostics that might be sympathetic.

So World War III. I just can’t see the non-religious winning.