The Gallipoli campaign took place at Gallipoli peninsula in the Ottoman Empire from 25 April 1915 to 9 January 1916, during the First World War. A joint British and French operation was mounted to capture the Ottoman capital of Istanbul (Constantinopole) and secure a sea route to Russia. The attempt failed, with heavy casualties on both sides.
In Turkey the campaign is known as the Çanakkale Savaş(lar)ı (Çanakkale Wars), after the province of Çanakkale. In the United Kingdom, it is called the Dardanelles Campaign or Gallipoli. In France it is called Les Dardanelles. In Australia, New Zealand, Ireland, and Newfoundland, it is known as the Gallipoli Campaign or simply as Gallipoli. It is also known as the Battle of Gallipoli.
The Gallipoli campaign resonated profoundly among all nations involved. In Turkey, the battle is perceived as a defining moment in the history of the Turkish people—a final surge in the defence of the motherland as the centuries-old Ottoman Empire was crumbling. The struggle laid the grounds for the Turkish War of Independence and the foundation of the Republic of Turkey eight years later under Mustafa Kemal Pasha, himself a commander at Gallipoli.
The campaign was the first major battle undertaken by the Australian and New Zealand Army Corps (ANZAC), and is often considered to mark the birth of national consciousness in both of these countries. As Anzac Day, the 25th April remains the most significant commemoration of military casualties and veterans in Australia and New Zealand, surpassing Armistice Day/Remembrance Day.