Former Soviet Union army veterans bring flowers to the monument to WWII victims during a Victory Day celebration, which commemorates the 1945 defeat of Nazi Germany, in Kiev, Ukraine, Friday, May 9, 2014. (AP Photo/Sergei Chuzavkov)

Women sing near a monument to WWII victims during a Victory Day celebration, which commemorates the 1945 defeat of Nazi Germany, in Kiev, Ukraine, Friday, May 9, 2014. (AP Photo/Sergei Chuzavkov)

People lay flowers to the Unknown Soldier monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

Ukrainian cadets salute at the Unknown Soldier monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

Ukrainian cadets salute at the Unknown Soldier monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

People attend a ceremony at the Unknown Soldier monument marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A woman gives flowers to a WWII veteran during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A child gives flowers to a WWII veteranin front of a WWII monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A boy wrapped with an Ukrainian national flag poses with a WWII during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A WWII veteran and a woman sit near a WWII monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A boy runs as he plays in front of a WWII monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A man lays flowers on a WWII monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

A handout picture released by the Ukrainian prime minister's press service shows Ukraine's acting premier Arseniy Yatsenyuk (R) shaking hands with veterans during a ceremony marking Victory Day in Kiev on May 9, 2014. Russian President Vladimir Putin took a victory lap his first visit to Crimea since its annexation by Russia, as fighting in eastern Ukraine left at least 21 dead just days ahead of a separatist vote. The visit drew a sharp rebuke from authorities in Kiev, who accused the Russian strongman of stoking tensions with his visit to Sevastopol, home to Russia's Black Sea fleet. AFP PHOTO/ PRIME-MINISTER PRESS-SERVICE HAND OUT/ ANDREW KRAVCHENKO == RESTRICTED TO EDITORIAL USE- MANDATORY CREDIT "AFP PHOTO /PRIME MINISTER'S PRESS SERVICE / ANDREW KRAVCHENKO" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS ==

A handout picture released by the Ukrainian prime minister's press service shows Ukraine's acting premier Arseniy Yatsenyuk (R) shaking hands with veterans during a ceremony marking Victory Day in Kiev on May 9, 2014. Russian President Vladimir Putin took a victory lap his first visit to Crimea since its annexation by Russia, as fighting in eastern Ukraine left at least 21 dead just days ahead of a separatist vote. The visit drew a sharp rebuke from authorities in Kiev, who accused the Russian strongman of stoking tensions with his visit to Sevastopol, home to Russia's Black Sea fleet. AFP PHOTO/ PRIME-MINISTER PRESS-SERVICE HAND OUT/ ANDREW KRAVCHENKO == RESTRICTED TO EDITORIAL USE- MANDATORY CREDIT "AFP PHOTO /PRIME MINISTER'S PRESS SERVICE / ANDREW KRAVCHENKO" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS ==

A handout picture released by the Ukrainian prime minister's press service shows Ukraine's acting premier Arseniy Yatsenyuk (L) shaking hands with veterans during a ceremony marking Victory Day in Kiev on May 9, 2014. Russian President Vladimir Putin took a victory lap his first visit to Crimea since its annexation by Russia, as fighting in eastern Ukraine left at least 21 dead just days ahead of a separatist vote. The visit drew a sharp rebuke from authorities in Kiev, who accused the Russian strongman of stoking tensions with his visit to Sevastopol, home to Russia's Black Sea fleet. AFP PHOTO/ PRIME-MINISTER PRESS-SERVICE HAND OUT/ ANDREW KRAVCHENKO == RESTRICTED TO EDITORIAL USE- MANDATORY CREDIT "AFP PHOTO /PRIME MINISTER'S PRESS SERVICE / ANDREW KRAVCHENKO" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS ==

A pro-Russia activist wearing the Saint George ribbon along with a picture of Russian Tsar Nicholas II and a flag of the former Russian Empire takes part in a Victory Day rally in central Kiev on May 9, 2014. Russian President Vladimir Putin took a victory lap in his first visit to Crimea since its annexation by Russia, as fighting in eastern Ukraine left 21 dead just days ahead of a separatist vote. AFP PHOTO/SERGEI SUPINSKY

A pro-Russia activist wearing a t-shirt with the state emblem of the former USSR leads a crowd holding a banner bearing the Saint George ribbon during a Victory Day rally in central Kiev on May 9, 2014. Russian President Vladimir Putin took a victory lap in his first visit to Crimea since its annexation by Russia, as fighting in eastern Ukraine left 21 dead just days ahead of a separatist vote. AFP PHOTO/SERGEI SUPINSKY

TOPSHOTS A boy walks in front of a WWII monument during a ceremony marking the Victory Day in the Ukrainian capital of Kiev on May 9, 2014. Ukraine's government on Friday protested Russian President Vladimir Putin's visit to annexed Crimea, where he inspected Russian naval forces in a commemoration of the Soviet victory in World War II. AFP PHOTO/ SERGEI SUPINSKY

Russian fighter jets fly above the Crimean port of Sevastopol on May 9, 2014, during a parade of Russian Air Force to mark Victory Day. The monument in the foreground marks the scuttling of Russians ships in 1854 to protect the harbor from Allied troops from Britain, France and Italy's Piedmont, which landed in the Crimea and besieged Sevastopol during the Crimean War. Russian President Vladimir Putin's visit to Crimea, which was annexed by Moscow in March, is a "flagrant violation" of Ukraine's sovereignty, authorities in Kiev said today.AFP PHOTO/ VASILY BATANOV