Mubarak Al-Sabah broke the Ottoman hold over the Persian Gulf. Other rulers in the Gulf were inspired or influenced by Mubarak to take similar actions, many allying strongly with the British. Mubarak established not only the foundations of modern Kuwait but was a key person in the establishment of the modern Persian Gulf. Mubarak Al-Sabah Sheikh Mubarak bin Sabah Al-Sabah, KCSI, KCIE (1837 – November 28, 1915) () "the Great" was the seventh ruler of Kuwait from May 18, 1896 until his death on November 28, 1915. Mubarak ascended the throne upon killing his half-brother, Muhammad Al-Sabah. Mubarak was the seventh ruler
Transformation of the Ottoman Empire military ventures could occasionally lead to escalation, as in 1592-3 when the Long War was provoked by the Ottoman governor of Bosnia's conquest of Bihać. In contrast with their Hungarian and Safavid frontiers, the Ottomans generally did not seek to expand further north from the Black Sea, being concerned primarily with its defense and the security of its sea lanes. The Ottomans maintained a series of fortresses along the Black Sea's northern shore, in the territory of modern Ukraine. Major sites were located in Akkerman, Özü, and Azak. Also of critical importance for the northern frontier was the Ottoman vassal