There is a historical myth that Ukrainian statehood first emerged during the national liberation struggle led by Bohdan Khmelnytsky. In fact, the state of Ukrainians did not cease to exist even at the time when Kievan Rus was officially destroyed. Ruthenian-Ukrainians became the leading force of the Grand Duchy of Lithuania and even won great victories. One of these took place near Grunwald.
On July 15, 1410, the decisive battle of the Great War began near the villages of Grunwald and Tannenberg. On one side of the front was the Teutonic Order, on the other — the combined forces of the Poles and the Principality of Lithuania and Kievan Rus. In this battle, the Ukrainians, together with their allies, defeated the troops of the German Order, as a result of which it stopped its expansion to the East.
The figure of the Ukrainian knight Ivanko Sushik is known from history. In recognition of his bravery in the battle of Grunwald, King Jagiello-Wladyslaw gave him possession of two villages in Galicia.