The Gallipoli campaign of World War I saw Allied forces attempt to capture the Gallipoli peninsula and open a sea route to Russia. Despite initial optimism, the campaign devolved into a costly stalemate, with both sides suffering heavy casualties from combat and harsh conditions. The Middle Eastern theater encompassed a vast area, including Egypt, Palestine, and Mesopotamia. British forces fought to protect the Suez Canal and secure oil resources, while supporting an Arab revolt against Ottoman rule. The campaign's outcome reshaped the region's political landscape.