- British Empire: The British Empire played a significant role in the Gallipoli campaign, providing the majority of the troops and resources. British forces included troops from the United Kingdom, Australia, New Zealand, India, and Newfoundland.
- French: France also contributed troops to the Gallipoli campaign, although their involvement was relatively limited compared to the British Empire.
- Russian: Russia initially intended to participate in the campaign by sending a naval force, but this plan was canceled due to the country's involvement in World War I on the Eastern Front.
Ottoman Involvement:
- Ottoman Empire: The Ottoman Empire was the primary defender of the Gallipoli peninsula during the campaign. The Ottoman forces were well-prepared and had a significant advantage in terms of knowledge of the terrain.
- German: Germany provided military advisors, trainers, and some artillery support to the Ottoman Empire during the campaign. However, the overall command of the Ottoman defenses remained with the Ottoman commanders.
Other Involvement:
- ANZAC: The ANZAC (Australian and New Zealand Army Corps) forces played a crucial role in the Gallipoli campaign, particularly during the landings at Anzac Cove and subsequent battles.
- Gurkha: Gurkha troops from Nepal, who were serving in the British Indian Army, also participated in the Gallipoli campaign.
- Irish: Irish troops from the United Kingdom also served in the Gallipoli campaign, including the Royal Dublin Fusiliers and the Connaught Rangers.
- Canadians: A contingent of Canadian troops from the 1st Canadian Division also took part in the later stages of the Gallipoli campaign.
The Gallipoli campaign involved the participation of forces from several nations, with the Allied forces primarily comprising units from the British Empire and France, while the Ottoman Empire, supported by German advisors, defended the peninsula.
