And then WOPR got shut down proving that for WOPR itself the winning strategy was to attack, since at that point he would have been critical for months to years

And then WOPR got shut down proving that for WOPR itself the winning strategy was to attack, since at that point he would have been critical for months to years afterwards. Perhaps even better would be to convince half of the military attacking was the winning strategy and half that not playing is the winning strategy would be even better, but also much harder. For humanity, perhaps not playing is optimal. For WOPR, definitely not. Same goes for a lot of military careers.