Russia presents the greatest threat to U.S. national security and its behavior is "nothing short of alarming," Marine General Joseph Dunford told lawmakers on Thursday as they weighed his nomination to become chairman of the Joint Chiefs of Staff.

• July 9, 2015

Malaysia has asked the United Nations Security Council to set up an international tribunal to prosecute those suspected of downing a passenger airliner last year in eastern Ukraine, but Russia dismissed the move on Thursday as counterproductive.

• July 9, 2015

Russia vetoed a United Nations Security Council resolution on Wednesday that would have condemned the Srebrenica massacre as a genocide to mark the 20th anniversary of the killing of 8,000 Muslim men and boys.

• July 8, 2015

NATO is preparing for a long standoff with Russia, reluctantly accepting that the Ukraine conflict has fundamentally transformed Europe's security landscape and that it may have to abandon hope of a constructive relationship with Moscow.

• July 6, 2015

Libya's two main rival factions restarted U.N.-backed peace talks in Morocco on Friday with negotiations at a crucial stage over a power-sharing proposal that negotiators call the best chance for peace.

• June 26, 2015

China's military has launched a three-year project to try to work out who owns the land it uses after finding that a quarter of it lacked ownership documents, which has led to disputes with civilians, the Defense Ministry said on Friday.

• June 26, 2015

Russian President Vladimir Putin is not done in eastern Ukraine, NATO's top commander said on Thursday, cautioning that Russia has been building up supplies on its border with Ukraine and keeping its military options open.

• June 25, 2015

The head of NATO said on Wednesday the alliance would not be forced into a new arms race with Russia but that what he called Moscow's aggression in Ukraine had compelled it to strengthen its defenses.

• June 24, 2015