<human>:  When did the battle of Gallipoli take place?
<bot>: The Battle of Gallipoli took place between April 25th and December 25th, 1915. The Battle of Gallipoli was fought between the Ottoman Empire and the Allies during World War I. The battle took place in the Dardanelles strait, which connects the Aegean Sea to the Mediterranean Sea. The battle was part of the wider Allied campaign to capture Constantinople, the capital of the Ottoman Empire. The Allies were hoping to secure a supply route into the heart of the Ottoman Empire.