“What kind of Christian doubts that?”
Oh, the kind that reads the Old Testament.
Though God *can* do His will without relying on armies killing children in His name, He has quite often chosen to do things in just that way.
Pacifism is not a tenet of Christianity.
Onward Christian soldiers.
The Old Testament does not support these views. And we have the New Testament to consider. What would have happened if a secular humanist state filled with atheists from Europe established itself on God's land in Old Testament times? What do you think God would have done? The OT gives us there are plenty of examples.