It's been four months since Russia invaded Ukraine on Feb. 24. As Friday draws to a close in Kyiv and in Moscow, here are the key developments:
Ukrainian troops were ordered to retreat from Sievierodonetsk, in the eastern Luhansk region, making way for a big win for Russia. The battle for Sievierodonetsk lasted more than a month. Luhansk governor Serhiy Haidai said Ukrainian forces needed to withdraw to avoid being surrounded and to set up new fortified positions elsewhere. Russia's capture of Sievierodonetsk will bring it closer to complete control of Luhansk. In a further advance in the eastern region, Russia said it made headway around the nearby town of Lysychansk.
