Wargames have repeatedly been used to align strategic initiatives because they are designed to as closely replicate an adversary's actions and resources as closely as possible. So for instance in better times there was Proud Prophet [1], another wargame, played out in 1983. Its goal was to simulate outcomes of various scenarios involving hot conflict with the USSR. Up to the point of that wargame, the US position towards the USSR had been this sort of 'peace through strength', 'escalate to deescalate' nonsense.

The problem is that the wargame demonstrated that it ended up with the extinction of the Northern Hemisphere every single time. We didn't then change the rules of the game to make it so we could still play nuclear games and come out okay, but instead took this as a major wakeup call. It directly led to a shift in US policy towards the USSR of coexistence, de-escalation, and some degree of reconciliation. Within 7 years the first McDonalds would open in the USSR, and the entire Soviet system would collapse in under a decade after the shift of the strategy driven entirely by this wargame result.

[1] - https://en.wikipedia.org/wiki/Proud_Prophet