How did each side's resources and strategies affect the early battles of the war?

Having a lot of resources firstly greatly affects how you will lead your battles, where you will lead them and how much thought you will put into preparing and creating a strategy for a certain battle. So in any battle, the more resources and the better strategy that one nation/one side in a war had, the better was probably their outcome as well. 

In essence, strategies helped both sides in any war to prepare for what the enemy would bring at them. With resources, they were able to utiilize these strategies and try to win a battle/the war.

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