German Chancellor Angela Merkel and U.S. President George W. Bush leave the government guest house 'Schloss Meseberg', 70 kilometres (43.5 miles) north of Berlin June 11, 2008. Bush arrived in Germany on Tuesday for talks with Chancellor Merkel on how to respond to a surge in oil prices and raise pressure on Iran over its nuclear programme. REUTERS/Pawel Kopczynski (GERMANY)