Islam is an imperialistic, expansionist religion.
It is not peaceful.
Muhammad Ibn Abdallah Ibn Al-Muttalib(570-632), the prophet of islam, was a man of war who taught his followers to spread his religion by the sword.
Muhammad was a rapist, a *****, a raider who butchered thousands of people who would not subdue before Allah.
This is where Islam comes from.
Those are its roots; Islam was born out of war.
Islam can't accept the other religions which currently exist.
This is the root cause of todays conflict.
This is their motivation.
It is the divinly ordained duty of all muslims to fight in the literal sense, until man-made law has been replaced by God's law, the Sharia, and Islamic law has conquered the entire world.
Muslims have been trying to achieve this goal for 14 hundred years.
This isn't a new conflict; it started in the 7th century.
Moderate Muslims speak of Islam coexisting with other religions and say that the Qu'ran includes many passages promoting peace with the "people of the book" (Jews and Christians).
These are lies.
I accept that the majority of moderate muslims may truly believe that Islam is a peaceful religion, but they are wrong.
For every text moderate Muslims may produce to try to show its peaceful side, there are dozens of counter examples which are both philosophically and historically far more legitimate.
I am not a racist.
I'm just spreading truth.
You can find the truth about Islam yourself by reading the following books, they're a pretty good start:
The Qu'ran, translated by Abdullah Yusuf Ali
The life of Muhammad: a translation of ibn ishaq's work: Sirat Rasul Allah, by A. Guillaume
An Introduction to Islamic Law by Joseph Schacht
Jihad in the West: Muslim Conquests From the 7th to the 21st Centuries, by Paul Fregosi
Why I'm Not a Muslim, by Ibn Warraq