Long-term causes of the Six Day War predate back to 1948. Firstly, Arab-Israeli enmity persisted since Israel's creation (14/05/1948) by the UN-Partition-Plan (29/11/1947). Jewish-Israel was carved into Palestine against the will of its Arab-residents due to religious and political reasons. Further, Arab-Israeli border tensions increased due to the 1948-49 wars . Israel's invasion of more Palestinian land as reprisals to Palestinian-terrorist and Arab-Nations' resulted in more Palestinian-refugees . Further, with Arabian-governments' continual refusals of Israel's existence, Israel refused to return Palestinian land, consequentially, relations worsened.

Secondly, the rise of Nasser in 1956 further escalated Arab-Israeli conflict. Nasser led the Arab-Nations and sought for Pan-Arabism in Middle-East, directly inferring the elimination of the incongruous Jewish Israel in the preponderantly Arabic region.

Thirdly, the 1956-Suez-Crisis had directed long-term causes...