On this day, 251 years ago, July 6, 1774 (May 28, 1774, the Lunar Calendar), the Battle of Otushumra. Battle of Otushumra July 6, 1774, Battle of Otushumra. The war between Russia and Turkey lasted for a total of 241 years intermittently, with an average of a large-scale war occurring in less than 19 years. It was the longest series of wars in European history. Austria, Britain, France, Poland, Romania, Bulgaria and other countries also participated in it. As a result of the war, Russia expanded its territory and Turkey gradually declined. 1806-1812 The Russian-Turkish War in 1989 was launched by Turkey with the support of Napoleon I. Turkey attempted to retaliate with war because Russia was engaged in fierce battles with France (1805-1807) and Iran (1804-1813). The Russian-Turkish War was caused by the sharpening of international contradictions surrounding the Eastern issue; Turkey's attempt to retaliate against Ukraine and the Black Sea littoral states; and Russia's attempt to consolidate its power in the Balkans and the Caucasus, relying on the support of the increasingly vigorous national liberation movement of enslaved, Christian peoples against the oppression of the Ottoman Empire. A series of wars between Russia and Turkey in the 17th and 19th centuries over expansion into the Black Sea and Balkans. The early war was mainly limited to Russia and Turkey, with war zones concentrated in the Balkans, Kerimu, Caucasus and other places. At that time, China's Turhut troops also joined the war. After the 19th century, it caused some European countries to intervene. Russian-Turkish wars have occurred many times, including 10 important ones: First Russian-Turkish War (1676 - 1681) Second Russian-Turkish War (1686 - 1700) Third Russian-Turkish War (1710 - 1713) See also the Great Northern War, the Fourth Russian-Turkish War (1735 - 1739) Fifth Russian-Turkish War (1768 - 1774) Sixth Russian-Turkish War (1787 - 1792) Seventh Russian-Turkish War (1806 - 1812) Eighth Russian-Turkish War (1828 - 1829) The Ninth Russian-Turkish War (1853 - 1856) See the Crimean War, the Tenth Russian-Turkish War (1877 - 1878) the Eleventh Russian-Turkish War (1914 - 1918) See the First World War After the Russian-Turkish War, the Russian army gained new experience in strategic coordinated operations between the army and navy, as well as in seizing fortresses and surrounding the enemy, enriching Russia's military academic. The Russian-Turkish War was a continuation of Russia's struggle against Ottoman aggression. The war broke out after Russia joined the anti-Turkish "Holy Alliance". During the war, the Russian army carried out expeditions to Crimu (1687, 1689) and Azov (1695-1696). As the Russian-Swedish War approached and other allies concluded peace treaties with Turkey, the Russian government also concluded the Peace of Constantinople with Turkey (1700). The end of the war was that Azov and the Azov Sea coast extending to the Mius River belonged to Russia. The war proved that the Russian army must carry out reform.