Russia has offered Iran its latest Antey-2500 missiles, the head of Russian state defense conglomerate Rostec said on Monday according to media reports, after a deal to supply less powerful S-300 missiles was dropped under Western pressure.

• February 23, 2015

Pro-Russian separatists are building up forces and weapons in Ukraine's south east and the Ukrainian military said on Saturday it was braced for the possibility of a rebel attack on the port city of Mariupol.

• February 21, 2015

The United States and its allies are discussing imposing more sanctions against Russia for undermining a European-brokered truce in eastern Ukraine, U.S. Secretary of State John Kerry said on Saturday.

• February 21, 2015

The European Union and Britain "sleepwalked" into the Ukraine crisis, failing to grasp its exceptional nature and lacking the ability to read political shifts in Russia, British lawmakers said in a report on Friday.

• February 20, 2015

Kiev accused Russia on Friday of sending more tanks and troops into eastern Ukraine and said they were heading towards the rebel-held town of Novoazovsk on the southern coast, expanding their presence on what could be the next key battlefront.

• February 20, 2015

Ukrainian President Petro Poroshenko has called for U.N. peacekeepers to be deployed to monitor a ceasefire in east Ukraine, a proposal that pro-Russia rebels swiftly said would be in breach of a peace deal.

• February 19, 2015

Government forces were pulling out of an encircled town in eastern Ukraine on Wednesday after a fierce assault by Russian-backed separatists which Kiev and Europe said violated a crumbling ceasefire.

• February 18, 2015

Sweden and Finland plan to extend their cooperation on defense and set up a joint naval task force as the two neighbors respond to rising tensions with Russia in the Baltic region.

• February 18, 2015