(This April 14 story corrects paragraph 21 to make clear that Moldova did not directly accuse Russia's army of trying to recruit its citizens; corrects third bullet point to say that Ukraine alleges Moscow is massing troops in Belarus and Transdniestria not Moldova and Transdniestria)
Russia said its lead warship in the Black Sea sank on Thursday after an explosion and fire that Ukraine claimed was caused by a missile strike, dealing a blow to Moscow as it readied for new attacks that were likely to determine the conflict's outcome.
