I. You don't at least feign friendly relations with the Germans to buy time for rebuilding the Soviet military.
II. As a result, Hitler decides you're the more immediate threat compared to the Allies and invade you immediately after Poland.
III. France and Britain do nothing but watch with relish and likely implicitly support it.
IV. You're likely invaded by Japan as well, since the dire resource situation that would historically necessitate their decision to bomb Pearl Harbor is two years away so their forces are unoccupied for awhile.
V. Without those two additional years of preparation for the Red Army, you lose.
VI. Congratulations, everyone in Eastern Europe (200+ million people) is enslaved or killed.
I. You don't at least feign friendly relations with the Germans to buy time for rebuilding the Soviet military.
II. As a result, Hitler decides you're the more immediate threat compared to the Allies and invade you immediately after Poland.
III. France and Britain do nothing but watch with relish and likely implicitly support it.
IV. You're likely invaded by Japan as well, since the dire resource situation that would historically necessitate their decision to bomb Pearl Harbor is two years away so their forces are unoccupied for awhile.
V. Without those two additional years of preparation for the Red Army, you lose.
VI. Congratulations, everyone in Eastern Europe (200+ million people) is enslaved or killed.