BEIJING, Dec. 22 (Xinhua) -- U.S. and Ukrainian negotiators on Sunday hailed the talks in Miami, Florida, as "productive and constructive" amid Russian troops' advances on the eastern front of Ukraine ...

KIEV, Dec. 21 (Xinhua) -- Ukraine's talks with U.S. and European partners over the past three days in the U.S. state of Florida were "productive and constructive," Ukraine's top peace negotiator ...