North Korea

'Absolutely certain' North Korea will denuclearise: US

Stephen Biegun, visiting South Korea, reiterates commitment to work together to end North's nuclear programme.

Visiting Seoul, US envoy seeks to boost denuclearisation push

Nuclear weapons

Nuclear ban treaty may come into force in 2019: ICAN

Treaty aims to stigmatise nuclear weapons as previous ones marginalised landmines and cluster munitions.

Nuclear ban treaty may come into force in 2019: ICAN

Inside Story

Will US exit from nuclear deal increase risk of war?

President Trump says it's time for the US to end the arms pact it signed with Russia more than 30 years ago.

US & Canada

Europe at heart of US, Russian battle over missile treaty

Ending INF Treaty, as threatened by Trump, could put pressure on EU and possibly start new arms race, analysts say.

Europe at heart of US, Russian battle over missile treaty

Europe

Putin: If US delivers missiles to Europe, we will mirror this

Russian leader vows to respond in kind if US quits INF treaty and deploys intermediate-range missiles in Europe.

Putin: If US delivers missiles to Europe, we will mirror this

United States

Putin meets Bolton amid nuclear treaty exit tensions

US security adviser's meeting with Russia's leader comes days after Trump voiced plan to end major arms control treaty.

Putin meets Bolton amid nuclear treaty exit tensions

Russia

Russia warns of arms race if US quits weapons treaty

Kremlin bids to save landmark arms-control deal as US National Security Adviser John Bolton reaches Moscow for talks.

Russia warns of arms race if US quits weapons treaty

Donald Trump

Citing Russia, China, Trump vows to 'build up' US nuclear arsenal

Trump sparks global concern saying he plans to jettison the 30-year old INF treaty signed by Reagan and Gorbachev.

Citing Russia, China, Trump vows to 'build up' US nuclear arsenal

Opinion

The end of INF: Another nuclear treaty bites the dust

The 1987 treaty was not perfect, but President Trump is unlikely to secure a better deal that can make the world safer.

Alexander Gillespie

by Alexander Gillespie

Alexander Gillespie

Russia

Bolton faces Moscow grilling over weapons treaty threat

US national security adviser to face questions in Moscow over Trump's threat to withdraw from arms-control deal.

Bolton faces Moscow grilling over Trump's weapons treaty threat

Russia

Gorbachev deplores Trump move to scrap US-Russia nuclear treaty

Russia condemns the US decision to pull out of a 30-year-old arms treaty - as does Mikhail Gorbachev, the Soviet leader who signed it.

Nuclear weapons

5 things to know about threatened US-Russia nuclear weapons deal

Trump wants to withdraw from the INF treaty that was signed over three decades ago by the US and Soviet leaders.

5 things to know about threatened US-Russia nuclear weapons deal

US & Canada

Trump says US will withdraw from nuclear deal with Russia

US president confirms Washington plans to leave nuclear weapons treaty with Russia over claims Moscow violated deal.

Trump says US will withdraw from nuclear deal with Russia

North Korea

Seoul eyes lifting of some sanctions against Pyongyang

Deal between rival states calls for creation of buffer zones along the Koreas' land and sea boundaries.

Seoul may lift some sanctions against Pyongyang