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
Capital of the Netherlands Capital of the Netherlands Amsterdam is the capital of the Netherlands according to the Constitution of the Netherlands, although the States General and the Executive Branch have been situated in The Hague since 1588, along with the Supreme Court and the Council of State. Since the 1983 revision of the Constitution of the Netherlands, Article 32 mentions that "the King shall be sworn in and inaugurated as soon as possible in the capital city, Amsterdam". It is the only reference in the document stating that Amsterdam is the capital. Only once during its history was Amsterdam both "capital" and seat