I don't think using RL religions is going to cause wars.
People should be able to use custom religions though, since there are so many real and fictional that people might like to use.
Same goes for nationality, perhaps take a leaf out of Victoria 2's book and have a primary culture/nationality, and accepted cultures/nationalities.
Can you make the VIP lounge invisible for non-VIPs please?
Its mocking me being there, tormenting.. I feel it scratching inside my mind, scratching, screaming running, so many - so, so many voices!
I wonder how happy your members will be that you dragged them into a war because you were too stubborn to accept reparations offered. The entire situation is your fault.