The Great State created by Osman I is Russia's sworn neighbor. In the 17th century, the Turks captured territories west of the Dnieper and became the main enemy of the Russian Empire for the next two centuries. Turkish troops defeated the Venetian Republic, Hungary, the Czech Republic, Poland, and even the Holy Roman Empire. At its peak, the territory of the Ottoman Empire extended from the gates of Vienna to the Persian Gulf, from Crimea to Morocco. The famous orientalist, Doctor of Historical Sciences Yuri Petrosyan, in his fundamental work in a popular form, describes the originality of the synthesis of the Christian-Muslim, multinational Ottoman civilization with a rich cultural and linguistic heritage ; the history of the creation, development and death of the powerful Ottoman Empire. The book was also published under the title “Ottoman Empire. Magnificent Sultanate"