Russian President Vladimir Putin has approved a new nuclear doctrine, lowering the threshold for a nuclear strike in response ...

Ukraine’s use of long-range missiles to attack Russia comes as both sides are positioning for peace talks once Donald Trump ...

Kremlin spokesperson Dmitry Peskov said Tuesday that Russia's new nuclear weapons doctrine means Ukraine's use of Western rockets "can prompt a nuclear response." ...

The 4-year-old document is known as Russia nuclear doctrine and President Vladimir Putin has signed a revamped version lowers ...

Officials say Ukraine fired several American-supplied longer-range missiles into Russia, marking the first time Kyiv has used such weapons since the start of the war ...

The decision to change Russia's official nuclear doctrine is the Kremlin's answer to a reported decision by the ...

The attack came just days after President Biden gave Ukraine permission to use the weapons to strike targets inside Russia.

The Ukraine war has not only shattered millions of lives and shaken Europe. It also has inured Washington to the use of ...

Unlike China, Russia, and North Korea, which recognize that nuclear weapons serve as both a fundamental guarantee of ...

If Russia were to launch a nuclear strike on Britain, "it wouldn't take many nuclear weapons to destroy the UK as a ...

Ukraine on Tuesday fired US-supplied long-range missiles into Russian territory in the first such strike as Moscow eased its ...