Link to an article by Jacques Pauwels:
“The Hitler-Stalin Pact of August 23, 1939: Myth and Reality”
This article makes some dubious assertions about the USSR, namely that Stalin knew approximately when Hitler would invade the USSR (when actually Stalin was paralyzed with shock and indecision — see Moshe Lewin’s The Soviet Century) and that the Red Army was knowledgeable and ready, when it suffered a defeat at the hands of tiny Finland and was greatly weakened by Stalin’s purges (again see Lewin’s book). But the parts about appeasement by Western powers is good.