Vladimir Putin calls a three-day ceasefire in May, coinciding with events marking the 80th anniversary of World War Two's end.
As Russia and the US seek to repair ties, could they secure a peace deal acceptable to Ukraine, asks Steve Rosenberg.
Ukraine and Russia have accused each other of violating a 30-hour truce, but it comes as diplomatic efforts pick up, Russia Editor Steve Rosenberg writes.
Trying to follow each twist between the US president and Moscow can leave you giddy, says the BBC's Steve Rosenberg.
Trying to follow each twist between the US president and Moscow can leave you giddy, says the BBC's Steve Rosenberg.
The Russian leader was able to set his own conditions for peace in a two-hour phone call with Donald Trump.
A breakdown in relations between Ukraine and the US is potentially very serious for Kyiv, but very positive for Moscow.
It is a week that has upended alliances and put Russia at the top table of global politics.
The BBC's Steve Rosenberg analyses how one phone call between Moscow and DC has already upended east-west relations.