The landing at Gallipoli was necessary because of the Navy's failure to push on through the Dardanelles Straits and take out Constantinople due to sea mines. The original campaign had been planned so that once the Straits were taken, Allied ships could assist Russia, bolstering the Eastern Front and knocking Turkey out of the war. However after the loss of one third of its fleet due to mines and mortar damage from the forts the Allied navy sailed out and the army was sent in to take possession of Constantinople.
…
