Religion is based, I think, primarily and mainly upon fear. It is partly the terror of the unknown and partly, as I have said, the wish to feel that you have a kind of elder brother who will stand by you in all your troubles and disputes. Fear is the basis of the whole thing.
A good world needs knowledge, kindliness, and courage; it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men. It needs a fearless outlook and a free intelligence. It needs hope for the future, not looking back all the time toward a past that is dead, which we trust will be far surpassed by the future that our intelligence can create.
From Bertrand Russell "Why I Am Not a Christian", originally a talk given by Russell in 1927 in UK.
Note that as of today, the people of United State Of America, and its leader George W Bush, has caused 40 thousand to 260 thousand civilian deaths in a Islamic country Iraq. George W Bush is a Christian. American population is some 76% Christian. Iraq is 97% Muslim. On the surface the Iraq Invasion has nothing to do with religion. But if Iraq is a Christian country, or if USA is a Islamic by culture and population, it’s hard to say if there will still be a war, or even a conflict.