A demonstrator holds a placard depicting former U.S. President George W. Bush during protests in downtown Ankara April 6, 2009. U.S. President Barack Obama is visiting Turkey on the last leg of an eight-day trip that marks his debut as president on the world stage, is a recognition of the secular but predominantly Muslim country's growing clout and Washington's desire for its help to solve confrontations and conflicts from Iran to Afghanistan. 'Halkin Kurtulus Partisi' reads as People's Independence Party. REUTERS/Pawel Kopczynski (TURKEY POLITICS CONFLICT)