The shortest way from IS to Israel goes through Palmyra and Damascus, littered with Assad troops. But Golan heights aren't the best place to enter Israel, Jordan is. That place not only has its own military, but has considerable Israel and US presence.
Also you can't ignore all your other front of war just to go for Palestine. Taking over Iraq is as important as Palestine.
Then they sure a taking their time. Maybe if they promise that they go against Israhell then maybe Iraqies would let them go.
The shortest way from IS to Israel goes through Palmyra and Damascus, littered with Assad troops. But Golan heights aren't the best place to enter Israel, Jordan is. That place not only has its own military, but has considerable Israel and US presence.
Also you can't ignore all your other front of war just to go for Palestine. Taking over Iraq is as important as Palestine.