Now if only we could get the losing party to accept the outcome of their simulations too and to capitulate.
In practice, the losing party as often as not will try to inflict as much damage on the victor as they can, and more often than not what starts as a battle ends up being a long term occupation and that's when all simulations seem to break down.
Actually it's more that the loser has to genuinely believe the result of the outcome. And amongst a population, the demographic of rebellious young adults tends not to accept outcomes like that...but of course that also becomes part of the calculus: can you accept expected losses of occupation forces?