Pro-Russian separatists attacked Ukrainian posts on the border with Russia and a military base, and tried to storm an airforce base overnight into Saturday, government forces said, putting a Ukrainian unilateral ceasefire under pressure.

• June 21, 2014

Baltic leaders said on Saturday they would back further sanctions against Russia at a European Union summit next week unless there was a de-escalation in eastern Ukraine where Kiev is trying to quell a pro-Russian insurgency.

• June 21, 2014

NATO countries, wary of antagonizing Russia, are unlikely to grant former Soviet republic Georgia a formal step towards membership of the alliance at a summit in September, NATO diplomats say.

• June 20, 2014

The United States blacklisted seven separatists in Ukraine on Friday and threatened "scalpel" sanctions on Russia's financial, defense and high-tech industries as more Russian military material has flowed into Ukraine.

• June 20, 2014

China has sent four more oil rigs into the South China Sea in a sign that Beijing is stepping up its exploration for oil and gas in the tense region, less than two months after it positioned a giant drilling platform in waters claimed by Vietnam.

• June 20, 2014

Philippine and American troops are set to hold naval exercises this month near a disputed shoal, which will almost certainly anger China with tension already high in the South China Sea.

• June 19, 2014

Finland should seriously consider joining NATO because of Russia's aggressive actions in Ukraine and could hold a referendum on the issue some time after its 2015 election, its defense minister told Reuters.

• June 18, 2014

After a late-night telephone call with Russian President Vladimir Putin, Ukrainian President Petro Poroshenko on Wednesday set out proposals for a peace plan for eastern Ukraine involving a unilateral ceasefire by government forces.

• June 18, 2014