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
Postage stamps and postal history of the postal convention states of India was never used. Gwalior issued a total of 137 stamps and 94 official stamps from 1885 till 1949. Jhind is another of the cis-Sutlej states which signed a postal convention on 1 July 1885. Having an area of just , the territory of Jind, like all the Phulkian states, was fragmented; comprising three main enclaves and some isolated villages. The Sikh ruler of Jind, Raja Ranbir Singh was a minor at the time of signing of the postal convention; the state being ruled by a Council of Regency at that point in time. Prior to becoming a convention state, Jhind