Circa 1931 the excuse of labor unrest an Communist agitators is used for attacking Poland with a mobilized Red Army. Assume the Baltic states are occupied as well.
Assume the European leaders are not completely surprised by this, with the previous 2-3 years of preparation encouraging the radical left in the west and scaring the hell out of the right.
1. Does France try to strengthen the 'Little Entente' through diplomacy & perhaps military aid ?
2. How much can Polish defense be boosted in a couple years?
3. I am assuming Facist Italy is concerned and tries to use this to strengthen connections with Rumania, and other Balkan states. Or is this unlikely ?
4. How far would the 1929-31 governments of the US and Britain go in supporting the continent against the USSR ?
5. Would the French government of the era overlook and effort by Germany to rearm, even in a small way ?
6. What are the prospects for central Europe as the Red Army marches to Warsaw? That is how does this war go & how is it likely to expand ?