The end of the Cold War, we were told, was meant to usher in an era of peace and prosperity. Instead we have permanent instabilty, if not crisis, and are, as a result of decisons made back then, closer to the nuclear brink than we ever were when the Soviet Union still existed (perhaps 1962 excepted):
https://www.washingtonpost.com/world/2022/10/01/europe-putin-nuclear-threats/
'“It’s a low probability event, but it is the most serious case of nuclear brinkmanship since the 1980s” when the Cold War ended, said Franz-Stefan Gady, a senior fellow with the International Institute for Strategic Studies in London. “It is a very dangerous situation and it needs to be taken seriously by Western policymakers.”'
The West had been hoping that Ukrainian successes would force Putin to back down, but instead he is doubling down. “Time and again we are seeing that Vladimir Putin sees this as a big existential war and he’s ready to up the stakes if he is losing on the battlefield,” Gabuev said.
'“At the same time I don’t think the West will back down, so it’s a very hard challenge now. We are two or three steps away” from Russia failing to achieve its goals and resorting to what was once unthinkable."'