Most of the fighting took place when the allies landed on Russia's Crimean Peninsula to gain control of the Black Sea. There were smaller campaigns in western Anatolia, the Caucasus, the Baltic Sea, the Pacific Ocean and the White Sea. It was one of the first "modern" wars, as it introduced new technologies to warfare, such as the first tactical use of railways and the telegraph. The subsequent Treaty of Paris (1856) secured Ottoman control over the Balkan Peninsula and the Black Sea basin. That lasted until defeat in the Russo-Turkish War of 1877–1878.