Republic of Central Lithuania authority over the area. Instead, it continued to treat the so-called Vilnius Region as part of its own territory and the city itself as its constitutional capital, with Kaunas being only a temporary seat of government. The dispute over the Vilnius region resulted in much tensions in the Polish-Lithuanian relations in the interwar period. Some historians have argued that if Poland had not prevailed in the Polish-Soviet War, Lithuania would have been invaded by the Soviets, and would never have experienced two decades of independence. Under this scenario, despite the Soviet-Lithuanian Treaty of 1920, Lithuania was very close to being
Lithuania July 1991, Soviet paramilitaries killed seven Lithuanian border guards on the Belarusian border in what became known as the Medininkai Massacre. On 17 September 1991, Lithuania was admitted to the United Nations. On 25 October 1992, the citizens of Lithuania voted in the referendum to adopt the current constitution. On 14 February 1993, during the direct general elections, Algirdas Brazauskas became the first president after the restoration of independence of Lithuania. On 31 August 1993, the last units of the Soviet Army left the territory of Lithuania. Since 29 March 2004, Lithuania has been part of the NATO. On 1