Members of  the Luhansk People’s Republic leaving   a  disengagement area near the town of Zolote in the Luhansk region. Photograph:   Alexander Reka\TASS via Getty Images

The next stage of a controversial troop withdrawal in eastern Ukraine is likely to be postponed on Monday, further complicating a bid by the country’s(...)

 Democratic presidential candidate, former vice-president Joe Biden, greets guests at the Polk County Democrats’ “steak fry” event on Saturday in Des Moines, Iowa. Photograph: Scott Olson/Getty

Former US vice-president Joe Biden, a frontrunner for the 2020 Democratic presidential nomination, on Saturday called for an investigation into report(...)

Volodymyr Zelenskiy: he will be asked about  his version of the July call and subsequent events. Photograph: Getty Images

As the star of hit film and television comedies that made him famous in Ukraine, co-founder of a successful production company and now president of hi(...)

Ukraine’s president Volodymyr Zelenskiy (R) greets Ukrainian prisoners freed by Russia upon their arrival at Boryspil airport outside Kiev on September 7th. Photograph: AP Photo/Efrem Lukatsky

Kiev and Moscow have laid out their positions ahead of a possible peace summit, as western powers back a push by Ukraine’s new leader to end its five-(...)