Mubarak Al-Sabah included other pressures and troubles for the Ottoman Empire including the British lobbying on Kuwait's behalf, led to the Anglo-Ottoman Convention of 1913, which recognized Kuwait as an autonomous "kaza" of the Ottoman Empire within the Green zone outlined in the map as well as an independent entity within the red zone outlined in the map. By the time World War I began Mubarak closely sided with the British against the Ottomans, and the 1913 Convention was rendered null. In support of the war effort Mubarak sent a force to Umm Qasr, Safwan, Bubiyan, and Basra to expel the Ottomans
Bahrain administrative reforms of the 1920s in "prosecution of war, piracy and slavery at sea" and Britain was to provide maritime protection. The treaty also recognized the Al Khalifa ruler as an "independent ruler". Six years later, in 1867–8, the British navy intervened after a Bahraini attack on Qatar. After two years, in 1869, they intervened again to end an internal struggle over power, and appointed Shaikh Isa ibn Ali Al Khalifa, then aged 21 as ruler of Bahrain. In subsequent years, the British exercised increasing control over Shaikh Isa's communications with foreign powers, especially the Ottomans, who had claims over Bahrain and Qatar. The increasing