How many nuclear weapons does Russia actually have? More than any other country in the world. Like the US, Russia’s active ...

Russian President Vladimir Putin’s announcement that Moscow is suspending its participation in the last remaining U.S.-Russia arms control treaty will have an immediate impact on U.S. visibility ...

Russia’s refusal to allow on-the-ground inspections to resume is endangering the New START nuclear treaty and U.S.-Russian arms control overall, the Biden administration charged.

Russia thinks chances are fading for agreeing on a new pact to replace the last nuclear arms control treaty with the US, which expires early next year, a top arms control official said.

Amid Russia’s escalating nuclear threat, the UK is expanding its nuclear fleet. Which countries have nuclear weapons, and ...

Russia sees little chance of saving its last nuclear accord with the United States, due to expire in eight months, given the "ruined" state of relations with Washington, its top arms control official ...

Deadlier weapons, more nations, autocrats in charge, disinformation and collapsing arms control — the risk of nuclear catastrophe is back.

Russian President Vladimir Putin’s announcement that Moscow is suspending its participation in the last remaining U.S.-Russia arms control treaty will have an immediate impact on U.S. visibility ...