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
Anglo-Ottoman Convention of 1913 capitulation rights for subjects of the Sheikh of Bahrain (protected by the Britannic Majesty’s Consuls) living in the Ottoman Empire (Article 15). The final step in ensuring its dominance over the Persian Gulf was formalizing British policing of the Gulf. Therefore, “for the Protection of its special interests…in the free water of the Persian Gulf and on the borders belonging to the independent Shaykhs from the south of al-Qatar up to the Indian Ocean,” the British were able to continue exercising, as in the past, the following measures (Article 16): <br> Anglo-Ottoman Convention of 1913 The Anglo-Ottoman Convention of 1913