Russia launched its biggest missile and drone attack on Ukraine so far this year on Tuesday, according to Ukrainian authorities, cutting heat to tens of thousands of people and ending a brief reprieve agreed to by Moscow and Washington as Ukrainians grapple with plummeting winter temperatures.

Russian military intelligence is paying young people to carry out espionage, arson, and other attacks across Europe.

For the second consecutive Olympic Games, no athletes will compete under the Russian flag

A day before Russian, Ukrainian and U.S. teams meet to talk peace, Putin's forces pounded Ukraine's energy infrastructure with dozens of drones and missiles.

Russia has violated a request made personally by US President Donald Trump and launched a massive strike on Ukraine at the height of winter cold. Kyiv is now expecting a response from Washington to this crime,

Ukraine has agreed with western partners that persistent Russian violations of any future ceasefire agreement would be met by a co-ordinated military response from Europe and the US, according to people briefed on the discussions.