FOX Business' Stuart Varney reacted to President Biden giving Ukraine's military the green light to use American-made ...

Two of NATO's top members have started sending more powerful missiles to Ukraine in the wake of President Joe Biden's new ...

President Vladimir Putin has signed a revised nuclear doctrine declaring that a conventional attack on Russia by any nation ...

Kremlin spokesperson Dmitry Peskov said Tuesday that Russia's new nuclear weapons doctrine means Ukraine's use of Western ...

President Vladimir Putin has updated Russia’s nuclear doctrine, two days after his US counterpart Joe Biden granted Ukraine ...

A Russian lawmaker calls President Biden's decision to let Ukraine fire U.S. missiles deep into Russia a "very big step ...

President Joe Biden for the first time authorized Ukraine to use U.S.-given long-range missiles to strike inside Russia, a ...

Changes to Russia's nuclear doctrine have been drawn up and will be formalised as necessary, the Kremlin said on Tuesday, ...

President Joe Biden has authorized Ukraine to use U.S.-supplied long-range missiles to strike deeper inside Russia.

The Kremlin warns Kyiv's use of such missiles would mark an escalation in the conflict, hours after Joe Biden gives the green ...