well there would me no wars and no fights and everyone would be peaceful haha
No, we would still kill over Communism and shit, try to save citizens of Communist countries such as Vietnam, and than end up using chemical weapons which harm the civilians who just want to get on with they're life, which than causes people to give birth to dead babies, and much later, when the new generation has forgotten completely about how much we screwed the country up, everyone will be glad we went into other countries affairs, because they have no idea that America is still responsible for civilian deaths in Vietnam, 33 years after the war ended.
then terrorism changed to somethign like puinishing those who wouldn't follow their religion's rules. I think there shouldn't be 1 religion but as much as there are people, because people need to follow their own ideas and not others.
If there was only one religion, the world would be a much better place. Religious wars are fought because some religion decides to kill all the infidels who feel differently than they do. One religion=no holy wars and millions of deaths avoided just because some person believes that ne1 who practices a religion other than theirs should die
I think that there would be generally more peace, people would be nicer, and have more morals. Of course, everything that everyone is saying DEPENDS on the assumption that the religion will be something nice. If it was something like the Norse relgion, or the religion of the Celts or the Saxons, there would be even more war, hatred, and killing.