But very seldom in recent history has religion ever been more than a tool used as opposed to a driving force.
But if we substitute "Western" for "Christian", Western (predominately Christian) nations have been invading and occupying Muslim nations regularly for the last few hundred years.
When they have not been actually invading the Western Nations have been setting up the governments, drawing the borders, over turning elections, killing or deposing rulers, using force to gain economic or resource control.
No Muslim nation in the last few hundred years has posed a real threat to any Western Nation, certainly since the Ottoman Empire.
Religion has not played a major role in Nation State conflict in centuries, and it is not a driving force today.
Anyone so limited that they can only spell a word one way is severely handicapped!