Teddy Roosevelt, in Fear God and Take Your Own Part (1916):...

“Christianity is not the creed of Asia and Africa at this moment solely because the seventh century Christians of Asia and Africa had trained themselves not to fight, whereas the Moslems were trained to fight. Christianity was saved in Europe solely because the peoples of Europe fought the Mohammedans who invaded. From the hammer of Charles Martel to the sword of Jan 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.”

