List of rulers of Lithuania
The state of Lithuania formed in the 1230s, when threatened by the Livonian Order in the north and the Teutonic Knights in the west, the Baltic tribes united under the leadership of Mindaugas. He became the only crowned king of Lithuania. His state became known as Grand Duchy of Lithuania. After Grand Duke Jogaila became also king of Poland in 1386, the two states became closer connected and since 1440 both were ruled by a common ruler. In 1569 Union of Lublin was signed and a new entity—the Polish–Lithuanian Commonwealth—emerged. The commonwealth was partitioned in 1795 and Lithuania became part of the Russian Empire till 16 February 1918. The Council of Lithuania was able to establish the sovereignty only in 1919, after Germany lost World War I. The first republic of Lithuania existed until 1940 when it was occupied by the Soviet Union. During the Soviet-German War, Lithuania was occupied by Nazi Germany. In 1944, as Germany was losing the war, Russia re-occupied Lithuania and established the Lithuanian Soviet Socialist Republic. On 11 March 1990, Lithuania became the first Soviet republic to declare independence. The restored Republic of Lithuania is a democratic republic, a member of both the European Union and NATO.
Act of Independence of Lithuania
In 1915, Germany occupied western parts of the Russian Empire. After the Russian Revolution in 1917, Germany conceived the geopolitical strategy of Mitteleuropa – a regional network of puppet states that would serve as a buffer zone – and agreed to allow the Vilnius Conference, hoping that it would proclaim that the Lithuanian nation wanted to detach itself from Russia and establish a closer relationship with Germany. However, this strategy backfired; the conference, held on 18–22 September 1917, adopted a resolution that an independent Lithuania should be established and that a closer relationship with Germany would be conditional on Germany's formal recognition of the new state. On 21 September, the 214 attendees at the conference elected a 20-member Council of Lithuania to codify this resolution. The German authorities did not allow that resolution to be published, but they did permit the Council to proceed. The Vilnius Conference also resolved that a constituent assembly be elected "in conformity with democratic principles by all the inhabitants of Lithuania".