The Gallipoli peninsula is located in Turkish Thrace (or East Thrace), the European part of Turkey, with the Aegean Sea to the west and the Dardanelles straits to the east. Gallipoli derives its name from the Greek "Καλλίπολις" (Kallipolis), meaning "Beautiful City". In antiquity, it was known as the Thracian Chersonese.

It is especially famous for the failed Allied offensive on Turkey in 1915 in World War I known as the Gallipoli Campaign.

The Gallipoli Campaign, also known as the Dardanelles Campaign or the Battle of Gallipoli or the Battle of Çanakkale, took place on the Gallipoli peninsula in the Ottoman Empire (now Gelibolu in modern day Turkey) between 25 April 1915 and 9 January 1916, during the First World War. A joint British and French operation was mounted to capture the Ottoman capital of Constantinople (Istanbul) and secure a sea route to Russia. The attempt failed, with heavy casualties on both sides. The campaign was considered one of the greatest victories of the Turks and was reflected on as a major failure by the Allies.

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 ageing 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 Atatürk, himself a commander at Gallipoli.