Which is the real difference between Christianity and islam. In Christianity, part of the deal is you know that many if not most will not follow Christ. While there have been many Utopian dreamers, the fact is that we all have to admit that many will not want to come to Christ. In islam, you fight the infidel till he converts or he dies. No exceptions.
And if islam has been spread by the sword...how well will the nuclear sword spread it? At least, I imagine that is what they are thinking.