Gulf of Tadjoura
The site was not the subject of any occupation, just visited by the ships of the naval divisions assigned to the Indian Ocean, until the installation of trader Pierre Arnoux in 1881, followed by Paul Soleillet. Obock became a true colony in 1884 with the arrival in August of Léonce Lagarde, who established an administration and extended French possession in the Gulf of Tadjoura, forming the Territory of Obock and outbuildings, with Obock as its capital. By 1885, Obock had 800 inhabitants and a school. However, the anchorage was more exposed than the site of Djibouti on the south side of the Gulf of Tadjoura, and the colonial administration moved there in 1894. The population of Obock subsequently declined.