In 1884, Britain established the British Somaliland protectorate in present-day northern Somalia after signing successive treaties with the then ruling Somali Sultans, such as Mohamoud Ali Shire of the Warsangali Sultanate.[150] In 1900, the emir of Darawiish monarch Diiriye Guure, namely Sayyid Mohammed Abdullah Hassan ("Mad Mullah") and their Dervish forces began a twenty-year resistance movement against British troops.