After the defeat of the Ottoman Empire in World War I, British troops occupied Karabakh. The British command provisionally affirmed Khosrov bey Sultanov (appointed by the Azerbaijani government) as the governor-general of Karabakh and Zangezur, pending a final decision by the Paris Peace Conference. The decision was opposed by Karabakh Armenians. In February 1920, the Karabakh National Council preliminarily agreed to Azerbaijani jurisdiction, while Armenians elsewhere in Karabakh continued guerrilla fighting, never accepting the agreement. The agreement itself was soon annulled by the Ninth Karabagh Assembly, which declared union with Armenia in April.