It’s not just capacity to counter-strike, but willingness to do so. This is a whole game theory thing that was developed in could war. To be willing to kill m

It’s not just capacity to counter-strike, but willingness to do so. This is a whole game theory thing that was developed in could war. To be willing to kill millions even if it was pointless is part of the game: the enemy must be completely and absolutely convinced that a counter strike will happen. This is the only way to deter. Absolute and complete certainty cannot be faked (given spies). It can only be provided if indeed the willingness to counter attack is real and enforced.