17th Sep The Soviets carry out their part of the secret appendix of the Molotov-Ribbentrop Pact, which divided Eastern Europe into Nazi and Soviet spheres of influence
18th Sep The remains of the Polish government & military High Command flee to Hungary
19th Sep Brest Litovsk The Red Army & German troops join up at Brest-Litovsk
24th Sep After the Russian invasion of PolandHitler agrees to Stalin's new demands