Where did you learn such BS?
"To Hitler, the conquest of Poland would bring
Lebensraum, or “living space,” for the German people. According to his plan, the “racially superior” Germans would colonize the territory and the native Slavs would be enslaved. German expansion had begun in 1938 with the annexation of Austria and then continued with the occupation of the Sudetenland and then all of Czechoslovakia in 1939. Both had been accomplished without igniting hostilities with the major powers, and Hitler hoped that his invasion of Poland would likewise be tolerated.
To neutralize the possibility that the USSR would come to Poland’s aid, Germany signed a nonaggression pact with the Soviet Union on August 23, 1939. In a secret clause of the agreement, the ideological enemies agreed to divide Poland between them. Hitler gave orders for the Poland invasion to begin on August 26, but on August 25 he delayed the attack when he learned that Britain had signed a new treaty with Poland, promising military support should it be attacked. To forestall a British intervention, Hitler turned to propaganda and misinformation, alleging persecution of German-speakers in eastern Poland. Fearing imminent attack, Poland began to call up its troops, but Britain and France persuaded Poland to postpone general mobilization until August 31 in a last ditch effort to dissuade Germany from war."
Germans invade Poland - Sep 01, 1939 - HISTORY.com