That's a canard. The had the oil production of Romania, the Arab countries of northern Africa, and considerable reserves that his armies stole from the Europeans they occupied. The overextended front and supply chain difficulties caused his Russian campaign to fail, which in turn caused the entire war to fail. Even his chief engineer and armaments minister Todt told him (prior to dying in a plane crash) that the war could not be won as early as January 1942. He didn't want to win. He just wanted to kill a bunch of people and leave Germany a pile of ash, and he succeeded very well.
Oh, crap I forgot U know everything , History Tv BS Chanel is talking again.
Do U speak Russian or German , have U visited Kursk,Stalingrad (Volgograd),Harkow...............
Oh, let me guess, your grandpa was in Panzer Division & left his Tiger near Kursk ,or perhaps your uncle was fighting inside Red October halls.......
O, yes there must be 3 (or 4) IC's in your family war history ..................