Cooler heads are needed as war enters most dangerous phase with Kyiv hitting Russia with missiles from West and Moscow turning up nuclear rhetoric The war in Ukraine is intensifying, with Russian ...

The U.S. decision to allow Ukraine to fire American weapons deeper into Russia has not increased the risk of a nuclear attack, which is unlikely, despite Russian President Vladimir Putin's ...

The recent strike on the Yuzhmash missile-producing plant in Ukraine demonstrated Russia’s "real military capability", a nuclear nonproliferation expert at the Middlebury Institute for International S ...

Russia on Wednesday warned the U.S. to stop what it said was a “spiral of escalation” over Ukraine as Washington moves to ...