On June 5, 1967, Israel launched a preemptive air strike that destroyed the Egyptian air force, triggering a six-day war against Egypt, Jordan, and Syria. Israel captured the Sinai Peninsula, Gaza Strip, West Bank, East Jerusalem, and Golan Heights, tripling its territory. The war placed approximately one million Palestinians under Israeli military rule and displaced 280,000-325,000 Palestinians. The UN Security Council passed Resolution 242 calling for Israeli withdrawal in exchange for peace. Israel annexed East Jerusalem and began building settlements in the occupied territories, creating the occupation that remains central to the Israeli-Palestinian conflict.