tria.
The largest area of Lithuanian territory became part of Russian Empire. After unsuccessful uprisings in 1831 and 1863, the Tsarist authorities implemented a number of Russification policies. They banned the Lithuanian press, closed cultural and educational institutions, and made Lithuania part of a new administrative region called Northwestern Krai. These ruthless Russification policies failed owing to extensive network of book smugglers and secret Lithuanian home schooling.
After the Russo-Turkish War (1877–1878), when German diplomats assigned what were seen as Russian spoils of war to Turkey, the relationship between Russia and the German Empire became complicated. The Russian Empire resumed the construction of fortresses at its western borders for defence against a potential invasion from Germany in the West. On 7 July 1879 the Russian Emperor Alexander II approved of a proposal from the Russian military leadership to build the largest "first-class" defensive structure in the entire state – the 65 km (25 sq mi) Kaunas Fortress. Between 1868 and 1914, approximately 635,000 people, almost 20% of the population, emigrated from Lithuania. Large numbers of Lithuanians went to the United States in 1867–1868 after a famine. A Lithuanian National Revival laid the foundations of the modern Lithuanian nation and independent Lithuania.
20th and 21st centuries
During World War I, the Council of Lithuania (Lietuvos Taryba) declared the independence of Lithuania on 16 February 1918, and the re-establishment of the Lithuanian State. Lithuania's foreign policy was dominated by territorial disputes with Poland and Germany. The Vilnius Region, and Vilnius, the historical capital of Lithuania, (and so designated in the Constitution of Lithuania) were seized by the Polish army during Żeligowski's Mutiny in October 1920 and annexed two years later by Poland. For 19 years Kaunas became the Temporary capital of Lithuania. The Polish
