TOPSHOTS
Ukrainian marines look at a Russian ship floating out of the Sevastopol bay on March 4, 2014. The Russian Black Sea Fleet commander Aleksandr Vitko has issued an ultimatum to the Ukrainian military personnel in Crimea, the Interfax-Ukraine news agency reported. Ukraine accused Russia on March 3 of pouring more troops into Crimea as world leaders grappled with Europe’s worst standoff since the Cold War and the Moscow market plunged on fears of an all-out conflict. AFP PHOTO/ VIKTOR DRACHEV