The Ottoman fleet had performed abysmally in the Greco-Turkish War of 1897, forcing the Ottoman government to begin a drastic overhaul. Older ships were retired and newer ones acquired, chiefly from France and Germany. In addition, in 1908 the Ottomans called in a British naval mission to update their training and doctrine. In the event, the British mission, headed by Admiral Sir Douglas Gamble, would find its task almost impossible. To a large extent this was due to the political upheaval in the aftermath of the Young Turk Revolution; between 1908 and 1911, the office of Navy Minister changed hands nine times. Inter-departmental infighting and the entrenched interests of the bloated and over-aged officer corps, many of whom occupied their positions as a quasi-sinecure, further obstructed drastic reform. In addition, British attempts to control the Navy's construction programme were met with suspicion by the Ottoman ministers, and funds for Gamble's ambitious plans for new ships were not available. To counter the Greek acquisition of the Georgios Averof, the Ottomans initially tried to buy the new German armoured cruiser SMS Blücher or the battlecruiser SMS Moltke. Not able to afford the ships' high cost, the Ottomans acquired two old Brandenburg-class pre-dreadnought battleships, which became Barbaros Hayreddin and Turgut Reis. Along with the cruisers Hamidiye and Mecidiye, these two ships were to form the relatively modern core of the Ottoman battlefleet. By the summer of 1912, however, they were already in poor condition due to chronic neglect: the rangefinders and ammunition hoists had been removed, the telephones were not working, the pumps were corroded, and most of the watertight doors could no longer be closed.

Question: How many years was the period where the office of Navy Minister changed hands nine times?
Answer: 3

Question: How many years was between when the Ottomans called in a British naval mission to when the Hamidiye and Mecidiye were in poor condition?
Answer: 6

Question: How many years did the Young Turk Revolution last?
Answer: 3

Question: How many ships and cruisers made up the Ottoman's battlefleet?
Answer: 4

Question: What happened first: Greco-Turkish War or changed hands nine times?
Answer: Greco-Turkish War

Question: What happened second: Greco-Turkish War or changed hands nine times?
Answer: changed hands nine times

Question: How many years passed when the office of Navy Minister changed hands nine times?
Answer: 3

Question: What happened first: Greco-Turkish War or Young Turk Revolution?
Answer: Greco-Turkish War

Question: What happened second: Greco-Turkish War or Young Turk Revolution?
Answer: Young Turk Revolution

Question: How many years did the Young Turk Revolution last?
Answer: 3

Question: How many years after the Greco-Turkish war of 1897 did the Ottomans call in a British naval mission to update training?
Answer: 11

Question: Which ships were the core of the Ottoman battlefleet?
Answer: Barbaros Hayreddin

Question: What ships were chronically neglected?
Answer: Barbaros Hayreddin

Question: Across how many years did the office of Navy Minister change hands 9 times?
Answer: 3