President Ahtisaari supported Finland's entry into the European Union, and in a 1994 referendum, 57 percent of Finnish voters were in favour of EU membership. He later stated that if Finland had not voted to join the EU he would have resigned. During Ahtisaari's term as president, Boris Yeltsin and Bill Clinton met in Helsinki. He also negotiated alongside Viktor Chernomyrdin with Slobodan Milošević to end the fighting in the Yugoslav province of Kosovo in 1999.