Should Jewish armed forces be blamed for the forced dispossession of half the Arab population from their homes in Palestine in 1948?

The withdrawal of Britain in 1947 led to war between Arabs and Jews in Palestine, at the end of which over half the Arab population had left their homes, never to return. Should we blame Jewish armed forces for the forced dispossession of Palestinians? Or should we blame Arab leadership for starting the war and encouraging Arab civilians to leave the war zone?