History of Lithuania
On February 16, 1918, Lithuania was re-established as a democratic state. It remained independent until the outset of World War II, when it was occupied by the Soviet Union under the terms of the Molotov–Ribbentrop Pact. Following a brief occupation by Nazi Germany after the Nazis waged war on the Soviet Union, Lithuania was again absorbed into the Soviet Union for nearly 50 years. In 1990–1991, Lithuania restored its sovereignty with the Act of the Re-Establishment of the State of Lithuania. Lithuania joined the NATO alliance in 2004 and the European Union as part of its enlargement in 2004.
History of Lithuania (1219–95)
Mindaugas, the duke who governed southern Lithuania between the Neman and Neris Rivers, eventually became the founder of the state. Mindaugas is referred to as the ruler of all Lithuania in the Livonian Rhymed Chronicle in 1236. The means by which he managed to acquire this title are not well known. Russian chronicles mention that he murdered or expelled various other dukes, including his relatives.
In 1236, Duke Vykintas led the Samogitian forces to victory in the Battle of Saule, where the Livonian Order suffered a catastrophic defeat. It seems that Vykintas did not receive support from Mindaugas. Vykintas' personal power grew. The Livonian Order was on the brink of collapse and was forced to become a branch of the Teutonic Knights. The combined Orders focused on the conquest of Samogitia, since only this land prevented them from consolidating their territories. The union of these aggressive powers could not have passed without notice in Lithuanian lands, and might have furthered the unification process. In about 1239 Mindaugas took over the weakened Black Ruthenia and appointed his son Vaišvilkas to govern it. During the early 1240s, Mindaugas strengthened and established his power in various Baltic lands. In 1245, Mindaugas sent his nephews Tautvilas and Edivydas, the sons of Dausprungas and Vykintas, to conquer Smolensk, but they were unsuccessful. In 1249, an internal war erupted as Mindaugas sought to seize his nephews' and Vykintas' lands.