Holy War

Holy War ????????????????
Just to the general culture for those who want to know this term for holy war was the Catholic church has used for centuries and chased everything and everyone who had not Catholicism as a religion.
They called the other infidels and pagans even if these were Christian but not Catholic.
Massacred people, countries invaded, burned people especially women, destroyed everything they passed, etc. etc. etc..
Cultures, nations, empires, peoples ... were destroyed. With the support of the Vatican the largest empire the world, which existed for almost 1000 years was destroyed, Byzantine!
(holy war aimed to enrich the coffers of the Vatican, looting and robbing everyone where they passed in the name of God)

They took thousands of children to fight for Jerusalem.

In the Koran there are references to holy war but it refers to a war that each of us must wage within ourselves (as someone said, we are our biggest enemy) as it is, be a better person, to do battle against our own interiors demons etc.. But in no way means killing non-Muslims because Islam preaches tolerance between religions.

But it is clear that the extremists and radicals (noting that exist in any religion, race, culture, people ...) have their way of seeing differently.