the Egyptians had made it clear that the United Nations was no longer wanted in the Suez region. Gamal Nasser, leader of Egypt, ordered a concentration of Egyptian military forces in the sensitive Suez zone. This was a highly provocative act and the Israelis only viewed it one way – that Egypt was preparing to attack. The Egyptians had also enforced a naval blockade which closed off the Gulf of Aqaba to Israeli shipping.