Lithuania is a country and has an estimated population of 2.8 million people.
Lithuania ( UK and US : [ lɪθuː ` eɪniə ] , Lietuva [ lʲɪɛtʊˈvɐ ] ) , officially the Republic of Lithuania ( [ Lietuvos Respublika , links = no ] ) , is a country in Northern Europe . Lithuania has an estimated population of 2.8 million people , and its capital and largest city is Vilnius .