Your own countrys website says they invaded Palestine. Why would arabs need to invade Palestine when you always try to cry that they attacked Israel. Zionist revisionism at its best. They went to Palestine because terrorist Jews began what you still continue today and they were there to defend them.
Abbas to urge UN to pressure Israel to permit entrance to Palestinian refugees from Syria (Haaretz)
from the article: UN rights investigator accuses Israel of 'ethnic cleansing'