Corps Expéditionnaire d'Orient

The Corps Expeditionnaire d'Orient (Oriental Expeditionary Force) (CEO) was a French expeditionary force raised for service during the Gallipoli Campaign in World War I. The corps initially consisted of a single infantry division, but later grew to two divisions. It took part in fighting around Kum Kale, on the Asiatic side of the Dardanelles, at the start of the campaign before being moved to Cape Helles where it fought alongside British formations for the remainder of the campaign. In October 1915, the corps was reduced to one division again and was finally evacuated from the Gallipoli peninsula in January 1916 when it ceased to exist.