The Latest Breaking News from Nuclear Weapons

Vladimir Putin’s decision to pull out of the New Start nuclear weapons treaty with the United States will have predictable responses.

How immediate is that threat?

After decades of progress on limiting the buildup of nuclear weapons, Russia’s war on Ukraine has prompted renewed nuclear tensions between Russia and the United States.

The last remaining treaty that limits Russian and U.S. nuclear weapons was already in grave peril before President Vladimir Putin announced on Tuesday that Moscow was suspending its participation.

Uranium needs to be purified to 90 per cent for nuclear weapons and the uranium found was at 84 per cent - which is the highest level found by inspectors in the country to date

US President Joe Biden said on Tuesday Ukraine "stands strong" a year after the Russian invasion and that Moscow would never defeat its neighbor, after the Kremlin suspended a landmark nuclear arms control treaty over the West's support for Kyiv. Hours before Biden spoke in Poland following a surprise visit…

During his State of the Nation speech today, the Russian leader threatened to take fighting cross-border and appeared to justify the use of nuclear weapons.

Today, Russian President Vladimir Putin threatened to take the war over borders and justified the use of nuclear weapons while addressing dignitaries during his State of the Nation speech

President Vladimir Putin has given an update to Russia's political and military elite on the Ukraine conflict in front of a large crowd in a State of the Nation speech today

North Korea’s recent resumption of missile tests highlights underscores its resolve to win the international recognition of a legitimate nuclear state and win outside concessions

US president pledges another $460m in aid ahead of war’s one-year anniversary