President Barack Obama said his focus on nuclear disarmament had strengthened U.S. diplomacy in dealing with North Korea and Iran, and he warned Tehran faced growing consequences over its nuclear program.
Next year will be crucial for global nuclear non-proliferation efforts and all eyes will be on the United States and Russia to see if the two top atomic powers can reach a deal to reduce their arsenals.
Russia and the United States are close to a deal to cut vast arsenals of nuclear weapons, Russia said Friday, as the world's two biggest atomic powers rush to replace a Cold War treaty that expires at midnight.
An influential Iranian leader suggested on Monday Iran should quit the Non-Proliferation Treaty in protest against a U.N. censure over its nuclear activity, but its atomic energy chief dismissed such a move.
Iran sees little point to staying in the Non-Proliferation Treaty, a senior official said on Monday, a day after announcing plans to build 10 more nuclear sites in a swipe at growing pressure to rein in atomic activity.
U.N. nuclear watchdog governors voted on Friday to rebuke Iran for building a uranium enrichment plant in secret but Tehran dismissed the move as intimidation which would poison its negotiations with world powers.
U.S. negotiators working to conclude a new strategic arms treaty with Russia are discussing ways to continue nuclear weapons monitoring until the new accord can be ratified, a State Department spokesman said on Monday.
Iran has yet to give a formal response to a U.N.-drafted nuclear fuel proposal after signaling it would do so this week, then leaking demands for major changes that could unravel the tentative pact.
Iran's foreign minister said on Tuesday it will never abandon its legal and obvious right to nuclear technology and will not curb uranium enrichment, despite talks the West hopes will lead to restraints on the program.
South Korea's foreign minister said on Thursday there were no signs that the North was in the final stages of restoring an aging nuclear plant, knocking down a report that operations could soon resume at the facility.
Iran said on Wednesday it viewed talks with six world powers in Geneva as an opportunity and a test, while the United States weighed sanctions over Tehran's nuclear program if Thursday's meeting fails.
Iran said on Tuesday it would refuse to discuss a newly declared nuclear plant at forthcoming international talks and cautioned Western powers it could curb cooperation further if they repeated past mistakes.
Israeli Foreign Minister Avigdor Lieberman said Saturday a newly disclosed nuclear facility in Iran was proof the Islamic Republic was seeking nuclear weapons.
President Barack Obama said on Saturday the discovery of a secret nuclear plant in Iran showed a disturbing pattern of evasion by Tehran which added urgency to its Oct 1. talks with world powers.
The U.N. Security Council, at a summit chaired by U.S. President Barack Obama, unanimously approved a resolution on Thursday that envisaged a world without nuclear weapons.
The U.N. Security Council, at a summit chaired by U.S. President Barack Obama, unanimously approved a resolution on Thursday calling on nuclear weapons states to scrap their arsenals.
Iran and world powers seeking to resolve a dispute over Tehran's nuclear program will start talks on October 1, in what a senior U.S. official described as an important first step.
Iran handed a package of proposals to world powers on Wednesday, as it came under renewed Western pressure to swiftly engage in meaningful talks to resolve the dispute over its nuclear program.
Japan's main opposition Democratic Party, which has a good shot at winning power in a general election this month, said on Thursday it backed U.S. President Barack Obama's call to rid the world of nuclear arms.
Former U.S. President Bill Clinton left North Korea on Wednesday with two American journalists whose release he secured in a meeting with the hermit state's leader, possibly opening the way to direct nuclear disarmament talks.
Below follows the full transcript of U.S. President Barack Obama's speech to the New Economic School in Moscow, as released by the White House.
The following are key excerpts from the speech by U.S. President Barack Obama to graduating students of the New Economic School in Moscow on Tuesday. The text was provided by the White House.