The Suez Crisis occurred in 1956 and involved Egypt, the UK, France, and Israel. It started when Egypt nationalized the Suez Canal, challenging Western powers’ economic interests. The UK and France conspired with Israel to regain control, leading to international condemnation. Under pressure, the aggressors agreed to a ceasefire and withdrew their forces. The UN deployed the UNEF to supervise the withdrawal and maintain peace. Israel occupied parts of Gaza and Sinai temporarily.