A close ally of President Vladimir Putin recently issued a stark warning to Western governments, cautioning that any approval for Ukraine to use long-range Western weapons to attack deep within Russian territory could spark a nuclear war.

Kremlin warns of nuclear war if the European Union backs Ukraine’s use of long-range weapons on Russian soil, escalating tensions to Cold War levels.

The member states of the Quadrilateral Security Dialogue (the United States, Australia, India, and Japan) have expressed their strong disapproval of Russia's possible use or mere threat of use of nuclear weapons.