In February 1916 the allied forces defeated the Germans and expelled them from Cameroon.
In February 1916 the French diplomat George picot and British minister of colonies Lencelot Oliphant made in London and temporally partitioned Cameroon.
In March 1916 the British and the French officers meeting in Douala accepted the temper partition of the territory.
According to the temporal partition France receive 4/5 of the territory to the East, Britain jook 1/3 of the territory to the territory.
In April 1916 the British and French soldiers moved to their various portion of the territory. The French zone Joseph Aymerich was appointed commissioner while the British appointed Charles Dobell as commissioner for British Cameroon.
In June 1919 Germany signed the treaty of Versailles and the consequences was that he lost Cameroon.
In July 1919 the British colonial secretory lord Alfred Milner the French minister for colonies Henri Simon agreement. The agreement confirmed the picot line adopted by Dobell and Aymerich in March 1916.
The British further partitioned the British partition of Cameroon and British southern Cameroon and was administered as part of her colony of Nigeria.
In 1922 the League Of Nation accepted the partition of officially handled the part of the territory to Britain and France mandate Britain territories of the League Of Nation. A number of factors motivated Britain to give action to share of the territories to France and Britain was more interest in Cameroon territories in Eastern Africa like Tangayika, Boost French morals in the war in Europe against Germany, needed only a small portion of Cameroon like Yolo and Burnu to give good shape to her Nigerian territories and to avoid financial caused by not acquiring more territory.
Britain did so to case administration British was contempletated with Germans South west Africa and equally left that she had enough territory in Africa and the British tax payers will be reluctant to hare the burden of extra colonies.