President Donald Trump has not committed to extending an agreement with Russia designed to cap nuclear weapons.

Ukraine-Russia: Zelensky says 55,000 Ukrainian soldiers killed in war as Kremlin vows to fight on - Moscow pressures Zelensky ...

Russian teams remain banned from Olympic competitions, but individual participation as "neutral" athletes is allowed under ...

The talks aimed at potentially ending the war after Russia ramps resumed strikes on major Ukrainian cities and energy infrastructure.

UN Secretary General Guterres urges Russia, US to resume dialogue on new arms control system. The reason behind that is the ban on broadcasting of Russian media in the EU, says Hungarian Prime ...

Follow NBC News live updates for the latest on the Milan Cortina Winter Olympics, where the curling events will open ahead of ...

The last remaining nuclear arms pact between Russia and the United States is set to expire Thursday, removing any caps on the ...

The delegations from Moscow and Kyiv were joined in the United Arab Emirates by U.S. special envoy Steve Witkoff and Jared ...

Russian missiles and drones have pounded Ukraine’s energy grid in recent weeks. That has plunged people into frozen darkness ...

U.S. bishops’ conference president Archbishop Paul Coakley called for keeping limitations of the 2010 New Strategic Arms ...

Some NATO countries worry using any version of the term “Article 5” for Ukraine defense could weaken its deterrence.

Ukraine, Russia and the US concluded the second round of trilateral peace talks in Abu Dhabi on Wednesday, with Moscow ...