The Adamawa Wars (1899-1907) were initially a series of military expeditions and border conflicts between the German Schutztruppe in Kamerun and the Fula Sunni Muslim states and tribes that were a part of the Sokoto Empire (a Caliphate formed during the Fulani Jihad), particularly the Emirate of Adamawa in the northern half of the region. After these territories were annexed major resistance continued for years and several uprisings occurred.