RUSSIA-UKRAINE-NAVY

Russian and Ukraine Commanders-in-Chief of the Black Sea Fleet are seen aboard Russian navy ships during celebration of 225 anniversary of Black Sea fleet on May 11, 2008 in Sevastopol. Russia’s Black Sea Fleet is present in Sevastopol under a lease that expires in 2017. The arrangement is a frequent source of tension between Russia and Ukraine. AFP PHOTO/ DMITRY KOSTYUKOV