Complex sentence: Earthquakes, anti-pagan legislations, and Arab invasions, caused dissidents and refugee groups forming to avoid oppression, establish the rule of sword as basic tool of survival on Makhaira mountains.
Split into simpler sentences: Earthquakes, anti-pagan legislations, and Arab invasions, caused dissidents and refugee groups to form in order to avoid oppression. They established the rule of sword as a basic tool of survival on Makhaira mountains.