The battle for Pokrovsk - on a big road and rail artery in the Donetsk region - has been going on for well over a year.

Russia and Ukraine have traded almost daily assaults on each other’s energy infrastructure as U.S.-led diplomatic efforts to stop the nearly four-year war make no impact on the battlefield.

P resident-elect Donald Trump has promised to end the Russia-Ukraine war in one day, all without presenting a detailed plan of action. Trump's foreign policy has been a core component of his successful bid for the White House,