Great Britain and the Iraqi oil industry war, but for production in the civilian economy. Britain had to turn elsewhere to address its growing oil needs. As Kaiser Wilhelm I and the Ottoman sultan struggled to reassert Ottoman dominion over the Sheikhdom of Kuwait, the British viceroy of the colonial government in India entered into an agreement with Sheikh Mubarak Al-Sabah which created a British protectorate in Kuwait. Britain needed a supply of petroleum which was not controlled by contemporary rivals such as Russia, Germany, or the Netherlands. British Admiral John Fisher wanted to replace Britain's coal-burning naval vessels with fuel-burning ships. This shift was crucial for
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