Cause the way I see it. if the game started after WW1, there would have to be a considerable time of Recontruction. not just hopping back into war. Makign the consumer goods demand Super high, and havign events to decrease it over time coudl simulate the rebuild of europe. Or Just super High dissent.
(the problem with the second is it could create quite difference between nations. where as one may have gotten rid of its dissent and be ready for war, others may still be struggling)
but anyways.. im rambling