I'm 100% in favor of such separation. Religious beliefs should never be the foundation for a system of governance, because then dogma tends to get into the mix and dogma is almost always awful. When you combine religion with your government it inevitably leads to people enforcing their religious beliefs on others. This, as most people ought to agree, is shitty and shouldn't be done. Everyone is welcome to have their own beliefs, but forcing them upon others is bad and that's what a joining of church and state does.

[quote=mdk]
When the church and state were the same entity there was never a wars......
[/quote]

Iran has been a theocracy since 1979. The Iran-Iraq War started in 1980 and ended in 1988.

The [url=http://en.wikipedia.org/wiki/Heavenly_Kingdom_of_Great_Peace]Taiping Heavenly Kingdom[/url] was a theocratic state formed in China in 1851. They waged a war of rebellion against the Qing Dynasty, which today is known as the Taiping Rebellion, that is said to have been one of the deadliest military conflicts in all of history and resulted in the deaths of an estimated 20 million people.

The Byzantine Empire was a theocracy (the Emperor was an absolute autocrat who was considered God's omnipotent representative) that lasted for over a millennium and engaged in well over 100 wars throughout their history, both as defender and aggressor.

I figure you were trying to be a cheeky little troll here, but come on, it takes all of fifteen seconds to do a little bit of research and debunk your claim. Try harder next time.