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
United States recognition of Jerusalem as capital of Israel will be part of those negotiations." During the 2016 US Presidential election, one of Trump's campaign promises was to move the US embassy in Israel from Tel Aviv to Jerusalem, which he described as the "eternal capital of the Jewish people." On June 1, 2017, Trump signed a waiver on the Jerusalem Embassy Act, delaying the move of the US embassy to Jerusalem for another six months, as had every president before him since 1995. The White House stated that this would help them negotiate a deal between Israel and Palestine, and that the promised move would come at a