Lock at the map of the Muslim empire in 750.
You will see a amazing empire from Afghanistan until Spain.
In 750 Muslims was only 11% of the wold population and now they 25%
Why they cant recommence they empire?
The answer-Israel.
Israel stay in the center of their empire.
If Israel will fall and with our "good" politicians Israel will fall,
The great Muslim empire will return!
And what the next step after Israel? Spain of course.
Spain was under control in the years 711-1492 and they want to conquer Spain again.