Moscow's spy agencies have started a campaign of bomb attacks to create panic and instability across Ukraine.
The Russian president is struggling to please both hawks and doves in the Kremlin.
The head of the Polish president's National Security Bureau has warned that Russia poses a 'security crisis'.
Dmitry Peskov has argued that Putin has limited control over the pro-Russian forces.
Despite Poroshenko's insistence that weaponry is being withdrawn from the frontline, tensions are still running high.
British foreign minister says no plans to supply Kiev with weapons but 'not ruling anything out'.
The Kremlin opposition leader's computer was taken and his office searched after his death.
For Ukrainian civilians, the first two months of 2015 have been especially deadly.
The military said a truce had been most fully observed around the rebel-controlled city of Luhansk and near government-held Mariupol on the Sea of Azov.
Interior Ministry says the accused recently returned to Spain after travelling to Ukraine in 2014.
Moscow had threatened to cut supplies after Kiev refused to pay for gas to rebel-held areas.
Law student Alik Sardarian tended to the injured during the Maidan uprising before reluctantly going to war.
Kiev fears port of 500,000 is next target for pro-Russian rebels after taking Debaltseve
Half-hearted support for Kiev will allow Russia to divide Europe again.
The ceasefire agreed in Minsk last week is now on the brink of total collapse as the rebels advance on Mariupol.
The group allegedly attacked a march in memory of Ukrainian soldiers killed in bordering Donetsk and Luhansk.
A Moscow store is stocking a variety of products in support of eastern Ukraine's rebels.
Ukrainian military fear that Mariupol is next target for pro-Russian separatists.
Secretary of State Kerry accuses Moscow of 'extraordinarily craven behavior at the expense of...a nation.'
If confirmed the accusation could go further to kill off a European-brokered truce that was met by relentless rebel advances.
House of Lords report criticises EU member states for 'being taken by surprise' by crisis
Pro-Russian separatists spurned the truce by forcing thousands of government troops out of the important railway hub of Debaltseve.
Navalny was jailed for 15 days for breaching a law that restricts demonstrations, barring him from a planned rally on March 1.
Michael Fallon said NATO was getting ready to repel any aggression.
The controversial 'holidays' will offer people the chance to collect souvenirs like spent bullets.