Belloc shows that the Crusades were a titanic struggle between Christian civilization and "the Turk," savage Mongols who had embraced Islam. He explains the practical reasons why the Crusaders initially succeeded and why they ultimately failed then he predicts the re-emergence of Islam, since Christendom failed to destroy it in the 12th century. Makes history come alive and gives a rare, true appreciation of Christendom and of our Catholic forefathers!