Neighbouring countries had a duty under the UN charter to try to protect the Palestinians from Israel's aggressive military occupation of territory outside Israel's boundaries, since at that time, Palestine had no government and was a 'non-state entity.' And as far as the Palestinians themselves are concerned, do you really think they would or should not resist military occupation of foreign invaders (in this case, Jewish immigrants from other lands who settled in Israel)? No reasonable person would think that, A. And no people who are occupied welcome their military occupier who steals their land and oppresses them, that's just obvious.
Italian FM arrives in Iran to promote economic, political ties (Reuters)