German Chancellor Angela Merkel is to visit Athens on June 20 for talks with Greek Prime Minister Costas Karamanlis, DPA QUOTED a government spokesman as saying on Friday. The chancellor will also deliver a speech to the Greek-German Chamber of Commerce during her one-day visit, government spokesman Ulrich Wilhelm said. The Greek prime minister's office said the talks would cover EU-relations with Turkey, Cyprus and Greek interest in the European fighter aircraft Typhoon.