Since Islam exists, Christians have been murdered by Islam. The Crusades are a defensive war, a response to this barbary. This is an ''holy anger'' A justified act of anger when facing atrocities. Jesus himself chased the merchants out of the temple with a whip. Today again, we face the islamic issue. Are we going to let our christian brothers being murdered or are we going to do what is right, finally?
Muhammad invaded and conquered Mecca. Later on, Muslims invaded Syria, Iraq, Jerusalem, Iran, Egypt, Africa, Spain, Italy, France, etc. The Western Crusades started around 1095 to try to stop the Islamic aggressive invasions. Islamic Crusades continued even after the Western Crusades. Islam has killed about 270 million people: 120 million Africans*, 60 million Christians, 80 million Hindus, 10 million Buddhists, etc.