Lessons from the Past on the Threat of a Nuclear War

As Russian tanks moved into Ukraine on February 24, President Vladimir Putin warned the North Atlantic Treaty Organization (NATO) that any attempt to intervene could lead to “consequences they have never seen”. Days later, Russia changed the alert status of its nuclear forces in a symbolic yet ominous move. The Russia-Ukraine war is one symptom of a changing international system, with a public nonchalance toward nuclear weapons. That disregard is in contrast to 40 years ago.