Answer:
The Six Day War pitted Israel against an Arab coalition formed by the United Arab Republic - official name of Egypt at the time - Jordan, Iraq and Syria between June 5 and 10, 1967.
After the Egyptian demand to the UN that it withdrew almost immediately its forces of interposition in the Sinai, the deployment of Egyptian forces on the Israeli border and the blockade of the Straits of Tiran, Israel, fearing an imminent attack, launched a preemptive strike against the Egyptian air force. Jordan responded by attacking the Israeli cities of Jerusalem and Netanya. By the end of the war, Israel had conquered the Sinai Peninsula, the Gaza Strip, the West Bank, East Jerusalem (including the Old City) and the Golan Heights.