What to know about the Kremlin’s revised nuclear policy

Russian soldiers load a Iskander-M short-range ballistic missile launcher as part of a Russian military drill intended to train troops in using tactical nuclear weapons (Russian Defence Ministry Press Service via AP)

Russian President Vladimir Putin has formally lowered the threshold for Russia’s use of its nuclear weapons in a revamped version of the country’s nuclear doctrine.

The changes to the Basic Principles of State Policy on Nuclear Deterrence were signed by Putin on Tuesday in a move that follows US President Joe Biden’s decision to let Ukraine strike targets inside Russian territory with American-supplied longer-range missiles.