The final global treaty restricting nuclear weapon deployment, New START, is set to expire on Thursday, leaving the US and Russia without limitations. Despite Russian President Putin's suggestion for a one-year extension,

U.S. deputy ambassador to the United Nations Tammy Bruce singled out Russia’s launch of a nuclear-capable Oreshnik ballistic missile last week close to Ukraine’s border with Poland, a NATO ally

The United States and Russia could embark on an unrestrained nuclear arms race for the first time since the Cold War, unless they reach an eleventh-hour deal before their last remaining arms control treaty expires in less than a week.

As losses mount, the pace of Russia's advance has at times been slower than the Battle of the Somme during World War I, a report says.

A new CSIS report warns Russia-Ukraine war casualties could reach 2 million by spring 2026, with Russia reportedly suffering 1.2 million casualties so far.

GENEVA -- Top U.S. and Ukrainian officials said Sunday they'd made progress toward ending the Russia-Ukraine war but provided scant details after discussing the American proposal to achieve peace that has sparked concerns among many of Washington's ...

The New START treaty is set to end on 5 February. Without it, there would be no constraints on long-range nuclear arsenals for the first time since Richard Nixon and Soviet leader Leonid Brezhnev sign