U.S. President Barack Obama arrived in Warsaw, Poland, in Air Force One Friday for more meetings after the Group of Eight summit in France, UPI reported. Obama was scheduled to have dinner with Central European leaders Friday and meet with those leaders Saturday to discuss Europe in the post-Cold War era, the White House said. Obama played the leadership role at the G8 summit in Deauville, France, a senior administration official said Friday. The official, speaking on condition of anonymity, said Obama, in his participation in the summit at Deauville, "set the groundwork for this meeting [that] was really quite substantial."