President Vladimir Putin says Russia has reserved the right to use all options in Ukraine, but that Moscow would use force only as a last resort.
Barack Obama's ascent to power had meaning, but now his interventions are too rare and too piecemeal to constitute a narrative, writes Gary Younge.
The world's top greenhouse gas emitters, China and the United States, have signed an agreement to work together to address climate change issues.
Iran's supreme leader, Ayatollah Ali Khamenei, said the US had a 'controlling and meddlesome' attitude towards the Islamic Republic.
The US stressed its commitment to the defense of Japan and stability in the Asia-Pacific region against a backdrop of territorial claims by China.
The first round of peace talks has ended with no progess made on ending the civil war or commitment from the govt to return to the negotiating table.
Federal and state laws in the United States are not in sync, but the future full-scale legalisation of marijuana might not be too far off.
It was a small gesture: a handshake between Barack Obama and Raul Castro. It's just what Nelson Mandela would have wanted, but does it amount to more?
France's President François Hollande and US President Barack Obama are both seeking guarantees that Iran will not develop nuclear weapons.
The 50th anniversary of the killing of America's 35th president has renewed the spotlight on the events in Dallas on November 22 1963.
Paul Anthony Ciancia, said to be "unresponsive" in hospital, has been charged with the murder of a federal officer at the LA International Airport.
US President Barack Obama's bargaining hand may have been strengthened by the thrashing Republicans took in polls over their handling of the shutdown.
Americans' patience has worn thin with Republican tactics that led to the government shutdown.
The US government shuts down nonessential services and Jacob Zuma is named as ‘Number One’ in Guptagate saga.
As Nina Davuluri took the title of Miss America, Haji Mohamed Dawjee looks at the harsh reception the first Indian-American winner received.
In reaching a deal on Syria after what a US official described as three days of "hard-fought" debate, Moscow and Washington can each count benefits.
On day three of talks between the United States and Russia, the two agree to eliminate Syria's chemical weapons by mid 2014.
The US will invest about $7-billion of state funds to double access to electricity for people in sub-Saharan Africa, says US President Barack Obama.
Signs of a potentially improved global wheat supply see local prices drop.
Whistleblower Edward Snowden possesses the cunning skills needed to survive the world of espionage. But even America's most wanted needs an ally.