AP Photo/Vadim Ghirda
Ukraine's President Viktor Yushchenko, right, listens to President George W. Bush, at the start of the third day of the NATO Summit conference in Bucharest, Romania, Friday April 4, 2008. Mr. But Bush lost, at least for the moment, a highly public spat over opening the door to NATO membership to Ukraine and Georgia, which Russia vehemently opposes.
AP Photo/Mikhail Metzel
Russian President Vladimir Putin gestures as he addresses the media during a press conference on the third day of the NATO Summit conference in Bucharest, Romania, Friday April 4, 2008. Putin told reporters that he thinks Friday's session with U.S. President George W. Bush and other leaders was positive - even though Moscow fiercely opposed the alliance's effort to put Ukraine and Georgia on track for NATO membership.
AP Photo/Yves Logghe
President George W. Bush and Secretary of State Condoleezza Rice bow their heads during a moment of silence for NATO casualties, before the start of the NATO Summit conference in Bucharest, Thursday April 3, 2008.
AP Photo/Gerald Herbert
President George W. Bush talks with Norwegian Prime Minister Jens Stoltenberg during a session with invitees, at the NATO Summit conference in Bucharest, Thursday April 3, 2008. The NATO allies agreed to put off a plan to put Ukraine and Georgia on track to join the alliance, but did invite Albania and Croatia to become members.
CBS
President George W. Bush talks with Italian Prime Minister Romano Prodi, during a session with invitees, at the NATO Summit conference in Bucharest, Thursday, April 3, 2008.
AP Photo/Gerald Herbert
President George W. Bush talks with Britain's Prime Minister Gordon Brown during a session with invitees, at the NATO Summit conference in Bucharest, Thursday April 3, 2008.
AP Photo/Yves Logghe
French President Nicolas Sarkozy gestures at German Chancellor Angela Merkel, during a joint press conference the NATO Summit conference in Bucharest, Thursday April 3, 2008. The NATO allies agreed to put off a plan to put Ukraine and Georgia on track to join the alliance, but did invite Albania and Croatia to become members.
AP Photo/Gerald Herbert
President George W. Bush speaks at the National Bank of Savings Wednesday, April 2, 2008, in Bucharest, Romania. Mr. Bush, in Romania for a NATO summit, welcomed announcements that some countries will be providing more troops to the NATO force in Afghanistan, but he's still calling on other allied nations to step up their efforts against terrorism.
AP Photo/Gerald Herbert
President George W. Bush speaks at the National Bank of Savings Wednesday, April 2, 2008, in Bucharest, Romania.
AP Photo/Gerald Herbert
President George W. Bush speaks at the National Bank of Savings Wednesday, April 2, 2008, in Bucharest, Romania.
AP Photo/Pablo Martinez Monsivais
President George W. Bush is seen through a television camera viewfinder as he speaks at the National Bank of Savings Wednesday, April 2, 2008, in Bucharest, Romania.
AP Photo/Gerald Herbert
President George W. Bush speaks at the National Bank of Savings Wednesday, April 2, 2008 in Bucharest, Romania.
AP Photo/Pablo Martinez Monsivais
President George W. Bush shakes hands with members of the audience after speaking at the National Bank of Savings Wednesday, April 2, 2008 in Bucharest, Romania.
AP Photo/Gerald Herbert
President George Bush and Romanian President Traian Basescu walk together before their joint press availability in Neptun, Romania Wednesday, April 2, 2008.
AP Photo/Gerald Herbert
President George Bush and Romanian President Traian Basescu walk together before participating in a joint press availability in Neptun, Romania, Wednesday, April 2, 2008.
AP Photo/Gerald Herbert
President George W. Bush. center, participates in an arrival ceremony with Romanian President Traian Basescu, left, in Constanta, Romania, Wednesday, April 2, 2008. Mr. Bush is in Romania to attend a NATO summit.
AP Photo/Gerald Herbert
President George W. Bush walks down the steps of the Presidential plane with first lady Laura Bush as they arrive in Constanta, Romania, Wednesday, April 2, 2008, to meet with Romanian President Traian Basescu. Mr. Bush is in Romania to attend a NATO summit.