While there are heavy battles in Judea and Samaria, sources claim that the Islamic Jihad was the one that started the formation of armed battalions from the Jenin refugee camp towards villages around it, and other camps in the north of Judea & Samaria. 

According to estimates, there are currently about 40 such active battalions.

According to the sources, the funding for these battalions comes to Judea & Samaria mainly through money smuggled into Israel from Lebanon.