Abstract:

The Ottoman State, which was defeated against the Holy Alliance, with the Treaties of Karlofça and Istanbul which it signed, left its sovereignty in Europe to Austria, while Azak also left Russia. The northern part of the country and the Gulf of Istanbul are in danger. Russia, which has built a naval in the Black Sea by getting Azak, has become a dangerous force for the Gulf and Istanbul while threatening Rumeli and Eastern Anadolu with its military power. With the Little Kaynarca Treaty, it has joined the Crimea, which it has gained independence, and has made an important breakthrough to reach the northern and hot seas of the Black Sea. The Istanbul Gulf, the waterway that connects the Black Sea to the open seas, has also become open to the Russian threat. During the 1768-1774 Ottoman Russian War, the construction of the castles in the Gulf of Istanbul and the construction of a new castle became mandatory to ensure the security of Istanbul after the Russian occupation of Crimea. In order to prevent the military dangers that may come to Istanbul from the Black Sea direction, the Ottoman State's investigation in Boğaz is recorded in the archive documents. In this study, in light of the Ottoman archive documents between 1774-1789 years, issues such as the construction of a new castle in the Gulf of Istanbul, the repair, repair and repair of existing castles, the addition of soldiers and munitions to the castle and tables were evaluated.

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