The Great Powers nearly went to war after this city's garrison was put under Liman von Sanders' command. An "ancient rule" on transportation in this city was subverted by the Treaty of Unkiar Skelessi, which was itself overturned in an 1841 London Convention. After declarations of war, this city's Fortress of the Seven Towers often served as a prison for enemy ambassadors. This was the largest city in an international zone created by the Treaty of (*) Sèvres. A 1915 agreement named for this city committed the Western Entente Powers to hand it over to its eastern ally if the Gallipoli Campaign was successful; that handing over of this city was intended to ensure an economic lifeline from the Black to the Mediterranean Seas. For 10 points, name this city that Russia wanted to control because of its strategic position on the Bosporus, the Ottoman capital.
The Great Powers nearly went to war after this city's garrison was put under Liman von Sanders' command. An "ancient rule" on transportation in this city was subverted by the Treaty of Unkiar Skelessi, which was itself overturned in an 1841 London Convention. After declarations of war, this city's Fortress of the Seven Towers often served as a prison for enemy ambassadors. This was the largest city in an international zone created by the Treaty of (*) Sèvres. A 1915 agreement named for this city committed the Western Entente Powers to hand it over to its eastern ally if the Gallipoli Campaign was successful; that handing over of this city was intended to ensure an economic lifeline from the Black to the Mediterranean Seas. For 10 points, name this city that Russia wanted to control because of its strategic position on the Bosporus, the Ottoman capital.
The Great Powers nearly went to war after this city's garrison was put under Liman von Sanders' command.
Constantinople [accept Istanbul; do not accept "Byzantium"]