Wherever the Mohammedans have had complete sway, wherever the Christians have been unable to resist them by the sword, Christianity has ultimately disappeared. From the hammer of Charles Martel to the sword of Sobieski, Christianity owed its safety in Europe to the fact that it was able to show that it could and would fight as well as the Mohammedan aggressor.There are such "social values" today in Europe, America and Australia only because during those thousand years, the Christians of Europe possessed the warlike power to do what the Christians of Asia and Africa had failed to do — that is, to beat back the Moslem invader.
Theodore Roosevelt