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.
Lithuanian Wars of Independence
After the Partitions of the Polish–Lithuanian Commonwealth in 1795, the Grand Duchy of Lithuania was annexed by the Russian Empire. The Lithuanian National Revival emerged during the 19th century and the movement to establish an independent nation-state intensified during the early 20th century. During World War I, Lithuanian territory was occupied by Germany from 1915 until the war ended in November 1918.