Russia–Turkey relations (Russian: Российско–турецкие отношения; Turkish: Rusya–Türkiye ilişkileri) is the bilateral relationship between Russia and Turkey and their antecedent states. Relations between the two are rather cyclical. From the late 16th until the early 20th centuries, relations between the Ottoman and Russian empires were normally adverse and hostile and the two powers were engaged in numerous Russo-Turkish wars, comprising one of the longest wars in modern history. Russia attempted to extend its influence in the Balkans and gain control of the Bosphorus at the expense of the weakening Ottoman Empire. As a result, the diplomatic history between the two powers was extremely bitter and acrimonious up to World War I. However, in the early 1920s, as a result of the Bolshevik Russi