Yosif Mahmoud Haj- Yahia has written:

'Alleged Palestinian collaborators with Israel and their families' -- subject(s): Palestinian Arabs, Attitudes, Political violence, Political activity

palestinian territories are occupied by israel.

The Fatah party

It simply means that the violence was spurred by political beliefs that are at odds with each other.

A person who uses violence for political reasons is called a terrorist. Terrorism is the use of violence or intimidation in the pursuit of political aims.