With the
invention of the steam engine, factories began requiring what

“the battle of stalingrad is not a turning point necessarily in strategic terms, because a lot more has to be done before the soviets can be certain of defeating germany,” says renowned world war ii historian richard overy. the germans had fought nearly a thousand miles across the soviet union to get to stalingrad.

which time period is this? or is this story fictional, i'm going to need more info to answer this question