The way nuclear forces are structured now, it's possible to use one nuclear weapon to take out many. In a crisis, there could be this incentive to attack. One possibility is to emphasize strategies where the attacker has to use more than one weapon for each of yours.
For decades, a delicate strategy of deterrence kept Russia and the US from nuclear war. With China upping its nuclear ambitions, things are about to get a lot more complicated.
This episode was produced by Amanda Lewellyn, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Michael Raphael, and hosted by Noel King.
Transcript at vox.com/todayexplained
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