In retrospect, it seems like it was a bad idea for Western countries to assume that things were going to remain peaceful after the fall of the USSR. Glad to see the threat of war being taken seriously.
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in which he says that WWIII may be a more urgent risk. It's a race.
https://media.defense.gov/2021/Oct/21/2002877353/-1/-1/0/DOD... (1.5 MB PDF)
Of course, when Niall Ferguson spoke, it looked at the contingency: he sees a possibility of catastrophic consequences that may come much earlier than the climatic "Armageddon". (Well, in some news peices today they spoke about "before Xmas"... It makes the order of events very definite.)