How did the want of natural recourses sometimes result in conflict

The amount of natural resources given in a certain cause conflict because there aren't enough resources to go around for everyone.

“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.

i see, would you mind putting it as one?