Temporary capital of Lithuania during the invasion of Poland, to Lithuania according to the Soviet–Lithuanian Mutual Assistance Treaty. Since then Vilnius has been the capital of the Lithuanian SSR and then independent Lithuania. Lithuania refused to have diplomatic relations between Poland and Lithuania until the ultimatum of 1938. Railroad traffic, telegraph lines or even mail could not cross the Polish–Lithuanian border. Lithuania continued to declare Vilnius as its capital in all official documents, including the constitution. Since the city was controlled by Poland, all Lithuanian authorities were transferred to the city of Kaunas, which became the seat of the government. To reconcile reality with
Economy of Lithuania Lithuania provides long-distance passenger and cargo services. Railways carry approximately 50 million tons of cargo and 7 million passengers a year. Direct rail routes link Lithuania with Russia, Belarus, Latvia, Poland, and Germany. Also, the main transit route between Russia and Russia's Kaliningrad Region passes through Lithuania. "Lithuanian Railways" AB transports about 44% of the freight carried through Lithuania. This is a very high indicator compared to other EU countries, where freight transportation by rail amounts to only 10% of the total. An ice-free seaport of Klaipeda is located in the western part of Lithuania. The port is an important