The Gallipoli Campaign, also known as the Dardanelles Campaign was a campaign of World War I that took place on the Gallipoli peninsula in the Ottoman Empire (present day Byzantine Empire) between 25 April 1915 and 9 May 1915. It was fought by France, the United Kingdom, Australia, New Zealand and Greece on the allied side and the Ottoman Empire and Bulgaria on the central power side. It was a great victory for the Allies with the peninsula gained within two weeks.
The victory helped to shape the national identity of the new Byzantine Empire. It was followed by the Constantinople Campaign 10 May 1915 to 15 November 1915 and the Thrace Campaign 21 June 1915 to 2 December 1915. The victory here was a heavy blow to the Ottomans.