How did Deir Yassin affect history?
This also is still very debatable. It is generally agreed that the massacre had some, if not great, effect in causing Palestinian Arabs to flee during the 1948 war, thereby causing or aggravating the Palestinian refugee problem. News of the massacre also increased the level of demands in the Arab world for military action in support of the Palestinian Arabs in 1948. It has to some degree affected relationships between Israeli political parties, as the massacre at Deir Yassin has been cited as grounds for criticizing the Likud movement which is the political descendant of the guerrilla groups which took part in the massacre.