Only for two major battles won by Christian Kings in 732 AD and 1683 AD the dominant religion in Europe today would be Islam. This assertion has been made by many reputable historians, both Christian and Islamic, down through the ages. The avowed intentions of the commanders of defeated Islamic armies in above battles were to convert all of Europe by the sword to their religion. We owe a debt of gratitude to both Charles Martel, King of the Franks, and John Sobiski, King of Poland for turning the tide.