Excerpt - BELGRADE (Reuters) - Serbia's ultranationalist Radical Party claimed victory in national elections on Sunday, in a voter rejection of Western appeals for closer cooperation on the arrest of war criminals and on Kosovo. A projection of the result showed the opposition Radicals, strongest party in Serbia for years, taking 28 percent of the vote, a point higher than the 2003 national elections. "The Radical Party has won these elections," said Tomislav Nikolic, the Radical's candidate for prime minister in the absence of party leader Vojislav Seselj, who is on trial for war crimes at the U.N. tribunal in...