[Ancesthntr]

Stalin arranged things so as to have the Germans and the West exhaust each other, so that the Red Army could sweep across Europe with little opposition...except that the Germans were faster on the draw and absolutely pulverized the Soviet units that were crowded into offensively-oriented positions very close to the border with the Third Reich.

Source: “Icebreaker. WHO STARTED THE SECOND WORLD WAR?”
by Viktor Suvorov https://en.wikipedia.org/wiki/Icebreaker_(Suvorov) (really Vladimir Bogdanovich Rezun, former Spetnaz and GRU officer who defected to the UK https://en.wikipedia.org/wiki/Viktor_Suvorov)

[granada]

So it was Stalin who ordered France and Britain to allow
Hitler rebuilding Germany’s military power?

[dfwgator]

Stalin arranged things so as to have the Germans and the West exhaust each other, so that the Red Army could sweep across Europe with little opposition...except that the Germans were faster on the draw and absolutely pulverized the Soviet units that were crowded into offensively-oriented positions very close to the border with the Third Reich.

France falling without much of a fight, turned out to be a blessing in disguise.