Once Turkey joined the war, Russia was threatened by a Turkish advance through the Caucasus. Turkey joining the war also meant that the Russian ports in the Black Sea were cut off from the world. The Allies were also worried that the Turkish would be able to take control of Egypt and the Suez Canal. To this, the Allies decided that it was crucial to take Turkey out of the war. Their plan was to go through the Dardanelles and bombard Constantinople until the Turkish surrender. To do this, they would need to take control of the Turk’s artillery in Gallipoli. Once Turkey joined the war, Russia was threatened by a Turkish advance through the Caucasus. Turkey joining the war also meant that the Russian ports in the Black Sea were cut off from the world. The Allies were also worried that the Turkish would be able to take control of Egypt and the Suez Canal. To this, the Allies decided that it was crucial to take Turkey out of the war. Their plan was to go through the Dardanelles and bombard Constantinople until the Turkish surrender. To do this, they would need to take control of the Turk’s artillery in Gallipoli. Once Turkey joined the war, Russia was threatened by a Turkish advance through the Caucasus. Turkey joining the war also meant that the Russian ports in the Black Sea were cut off from the world. The Allies were also worried that the Turkish would be able to take control of Egypt and the Suez Canal. To this, the Allies decided that it was crucial to take Turkey out of