Jewish terrorism arose in the 1930's as self-defense against Palestinian terrorism.

Jews lived for in Hebron & Gaza for centuries until Palestinians ethnically cleansed those areas of their Jews in 1929. 
“…The riots took the form, in the most part, of attacks by Arabs on Jews…”
“…110 Arabs were killed and 232 were injured, the vast majority by the British police while trying to suppress the riots…”