Lithuania result of the staged Żeligowski's Mutiny in October 1920, Poland took control of Vilnius Region and annexed it as Wilno Voivodeship in 1922. Lithuania continued to claim Vilnius as its "de jure" capital and relations with Poland remained particularly tense and hostile for the entire interwar period. In January 1923, Lithuania staged the Klaipėda Revolt and captured Klaipėda Region (Memel territory) which was detached from East Prussia by the Treaty of Versailles. The region became an autonomous region of Lithuania. On 15 May 1920, the first meeting of the democratically elected constituent assembly took place. The documents it adopted, i.
National symbols of Lithuania Soviet occupation of Lithuania, the Lithuanian flag and the national anthem were replaced; the Lithuanian Coat of Arms was not shown in official capacities. On the other hand, in keeping with the Soviet policy of encouraging what were seen as harmless expressions of ethnic identity, Lithuanian national costumes were often featured on postal stamps and elsewhere. Lithuania was occupied by Soviet Union in 1940-1941, later it was controlled Nazi government during World War II and was a Soviet Socialist Republic from 1944 until 1990. The latter situation is generally seen by Lithuanians as an occupation. Public displays of both the