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
From the early 13th century, two German crusading military orders, the Livonian Brothers of the Sword and the Teutonic Knights, became established at the mouth of the Daugava River and in Chełmno Land respectively. Under the pretense of converting the population to Christianity, they proceeded to conquer much of the area that is now Latvia and Estonia, in addition to parts of Lithuania. In response, a number of small Baltic tribal groups united under the rule of Mindaugas. Mindaugas, originally a "kunigas" or major chief, one of the five senior dukes listed in the treaty of 1219, is referred to as the ruler of all Lithuania as of 1236 in the Livonian Rhymed Chronicle.