In Norway chess has never been more popular. By far. It is all because of Magnus Carlsen. Several times a year our main TV channels broadcast chess tournaments where Magnus participates. At one point chess even hade more viewers than our national sports like football and cross-country skiing.
I understand your doubts. Like for the Annexation of Czechoslovakia, the procedure is almost the same for the War on Poland. In both cases an Alliance between USSR and Czechoslowakia/Poland can easily make the Total War break out if the matching Defend Czechoslowakia or Defend Poland Political Action Card is successfully performed by the Democracy player; and this is greatly helped by the Abandonement of Appeasement Policy, but also by other cards of Democracy. So, this is indeed the most complex element of the game, which tries to reproduce the most challenging aspect of the geopolitical struggle that historically took place in 1938-39. And, like for most CDGs, the knowledgle of the Strategy Card Decks is here of fundamental importance.