Romanian War of Independence

The Romanian War of Independence (Romanian: Războiul de Independență al României) is the name used in Romanian historiography to refer to the phase of the Russo-Turkish War (1877–78), in which Romania, fighting on the Russian side of the war, gained independence from the Ottoman Empire. On April 16 [O.S. April 4] 1877, Romania and the Russian Empire signed a treaty at Bucharest under which Russian troops were allowed to pass through Romanian territory, with the condition that Russia respected the integrity of Romania.

Source: Wikipedia — Romanian War of Independence (CC BY-SA 4.0)