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.
Mindaugas
Lithuania was ruled during the early 13th century by a number of dukes and princes presiding over various fiefdoms and tribes. They were loosely bonded by commonalities of religion and tradition, trade, kinship, joint military campaigns, and the presence of captured prisoners from neighboring areas. Western merchants and missionaries began seeking control of the area during the 12th century, establishing the city of Riga, Latvia in 1201. Their efforts in Lithuania were temporarily halted by defeat at the Battle of Saule in 1236, but armed Christian orders continued to pose a threat. The country had also undergone incursions by the Mongol Empire.