which ethnic groups are seen over there?
Lithuanians, Ukrainians, Belarusians etc
Lithuania
Ethnic Lithuanians make up about five-sixths of the country's population and Lithuania has the most homogeneous population in the Baltic States. 
what is league of nations? It was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. when was it formed? 10 January 1920 how many countries does it comprise? Weimar Republic, Germany, France, Egypt etc describe its symbol? two five-pointed stars within a blue pentagon. what powers does it have? preventing wars through collective security and disarmament and settling international disputes through negotiation and arbitration who is the head of the league? The Assembly, the Council, and the Permanent Secretariat. how does one become a member of it? UNANSWERABLE what is saar? It was a province formed from parts of Prussia and the Rhenish Palatinate and placed under League control by the Treaty of Versailles. what does collective security mean? A security arrangement, political, regional, or global, in which each state in the system accepts that the security of one is the concern of all, and therefore commits to a collective response to threats to, and breaches to peace. what were the weaknesses of the league? The onset of the Second World War demonstrated that the League had failed in its primary purpose, the prevention of another world war. does the league still exist? No, it dissolved itself on  31 July 1947. where was its headquarter? UNANSWERABLE what did it do in memel? The League Council appointed a Commission of Inquiry which  chose to cede Memel to Lithuania and give the area autonomous rights from where did the second place get its name? It is derived from a Latinized form of the name Lietuva. where is the place located? Baltic region of Europe
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Lithuania [SEP] Ethnic groups
Ethnic Lithuanians make up about five-sixths of the country's population and Lithuania has the most homogeneous population in the Baltic States. In 2015, the population of Lithuania stands at 2,921,262, 84.2% of whom are ethnic Lithuanians who speak Lithuanian, which is the official language of the country. Several sizeable minorities exist, such as Poles (6.6%), Russians (5.8%), Belarusians (1.2%) and Ukrainians (0.5%). Poles in Lithuania are the largest minority, concentrated in southeast Lithuania (the Vilnius region). Russians in Lithuania are the second largest minority, concentrated mostly in two cities. They constitute sizeable minorities in Vilnius (12%) and Klaipėda (19.6%), and a majority in the town of Visaginas (52%).