Before 21 Lithuanian dukes signed a peace treaty with Galicia–Volhynia, what is an example of the war-related functions the group who made up the majority of the military-economic staff of the state performed?
History of Lithuania (1219–95) The history of Lithuania between 1219 and 1295 concerns the establishment and early history of the first Lithuanian state, the Grand Duchy of Lithuania. The beginning of the 13th century marks the end of the prehistory of Lithuania. From this point on the history of Lithuania is recorded in chronicles, treaties, and other written documents. In 1219, 21 Lithuanian dukes signed a peace treaty with Galicia–Volhynia. This event is widely accepted as the first proof that the Baltic tribes were uniting and consolidating. Despite continuous warfare with two Christian orders, the Livonian Order and the Teutonic Knights, the Grand Duchy of Lithuania was established and gained some control over the lands of Black Ruthenia, Polatsk, Minsk, and other territories east of modern-day Lithuania that had become weak and vulnerable after the collapse of Kievan Rus'.
Polish–Lithuanian War The Polish–Lithuanian War was an armed conflict between newly independent Lithuania and Poland in the aftermath of World War I. The conflict primarily concerned territorial control of the Vilnius Region, including Vilnius, and the Suwałki Region, including the towns of Suwałki, Augustów, and Sejny. The conflict was largely shaped by the progress in the Polish–Soviet War and international efforts to mediate at the Conference of Ambassadors and later the League of Nations. There are major differences in Polish and Lithuanian historiography regarding treatment of the war. According to Lithuanian historians, the war was part of the Lithuanian Wars of Independence and spanned from spring 1919 to November 1920. According to Poland, the war included only fighting over the Suwałki Region in September–October 1920 and was part of the Polish–Soviet War.