�t-Willaumez signed treaties with the kings of the Grand Bassam and Assinie regions, placing their territories under a French protectorate. French explorers, missionaries, trading companies, and soldiers gradually extended the area under French control inland from the lagoon region. Pacification was not accomplished until 1915.
Activity along the coast stimulated European interest in the interior, especially along the two great rivers, the Senegal and the Niger. Concerted French exploration of West Africa began in the mid-nineteenth century but moved slowly, based more on individual initiative than on government policy. In the 1840s, the French concluded a series of treaties with local West African rulers that enabled the French to build fortified posts along the Gulf of Guinea to serve as permanent trading centres.
The first posts in Ivory Coast included one at Assinie and another at Grand Bassam, which became the colony's first capital. The treaties provided for French sovereignty within the posts, and for trading privileges in exchange for fees or coutumes paid annually to the local rulers for the use of the land. The arrangement was not entirely satisfactory to the French, because trade was limited and misunderstandings over treaty obligations often arose. Nevertheless, the French government maintained the treaties, hoping to expand trade.
France also wanted to maintain a presence in the region to stem the increasing influence of the British along the Gulf of Guinea coast. The French built naval bases to keep out non-French traders and began a systematic conquest of the interior. (They accomplished this only after a long war in the 1890s against Mandinka forces, mostly from Gambia. Guerrilla warfare by the Baoulé and other eastern groups continued until 1917).
The defeat of France in the Franco-Prussian War in 1871 and the subsequent annexation by Germany of the French province of Alsace Lorraine caused the French
