Russian President Vladimir Putin on Tuesday lowered the threshold for nuclear weapons use, just two days after the U.S. authorized Ukraine to use long-range missiles inside of Russia.
Putin updated his nuclear doctrine, "Basic Principles of State Policy of the Russian Federation on Nuclear Deterrence," to say that any aggression from a non-nuclear state with the support of a nuclear state will be treated as a joint attack on Russia.
"The Russian Federation reserves the right to use nuclear weapons in case of aggression with the use of conventional weapons against it," Kremlin Spokesman Dmitry Peskov told reporters Tuesday,........