The United States has asked Greece to ban Russian supply flights to Syria from its airspace, amid growing US fears that Moscow is increasing its military backing for Syrian President Bashar al-Assad.
US Defense Secretary Ashton Carter offered assurances that the Iran nuclear deal will leave Washington with a "more effective" military option if that becomes necessary.
The EU is preparing to step up action against people smugglers in the Mediterranean, actively seizing the boats which carry thousands of hapless migrants to Europe.
North Korean leader Kim Jong-Un said nuclear weapons -- not negotiating skills -- secured what he described as a "landmark" agreement this week with South Korea.
NATO opened a training centre in Georgia as the ex-Soviet country eyes closer partnership with the Western military alliance amid tensions with Russia.
The US serviceman who was wounded while foiling a gun attack on a train in Europe will be nominated for the Air Force's highest medal for non-combat bravery.
North and South Korea sat down to urgent top-level talks, seeking some way out of an escalating crisis that has pushed both their militaries to the brink of an armed conflict.
Barack Obama is making a final push to close Guantanamo prison, but to fulfill that glaringly incomplete campaign promise he faces unpalatable compromises and internal resistance.
After eight months of negotiations France and Russia have reached a deal on the amount Paris must pay Moscow in compensation for the non-delivery of two Mistral warships.
Top US military officers sought to reassure worried lawmakers that US forces would check Iran's "malign" influence in the Middle East should Congress greenlight the nuclear deal with Tehran.
