German Chancellor Angela Merkel welcomes Turkish Prime Minister Tayyip Erdogan (L) before a meeting at the guesthouse of Lower Saxony's government in Hanover April 15, 2007. Merkel and Erdogan will open the "Hannover Messe" industrial trade fair on Sunday and Turkey is this year's partner country. The world's leading fair for industrial technology with about 6,400 exhibitors from 62 nations opens to the public on Monday and runs till April 20 showing their latest products and technical innovations. REUTERS/Christian Charisius (GERMANY) | Foto: Reuters