> what went wrong germans didn't prepare logistics for such huge spaces. their army was designed to conquer fast such countries like poland or france, but not soviet union. they didnt have enough of trucks and trains to supply their troops on frontlines. moreover they had to disperse their resources because they waged war on many fronts, not only on eastern front but also war on atlantic, war against the uk, war in middle east, war in africa etc. if they could resign from building u-boots, they would have enough of potential to build additional tens of thousands of tanks fe xd moreover they had huge shortages of materials, they had to consume a lot of resources to produce synthetic alternatives. in the meantime british/american bombers were bombing their country all the time, destroying crucial factories, they had to rebuild stuff all the time and it was taking even more resources and time.
Poland