Can someone look at my paragraph please? I wrote it!?

It's pretty good. I would reccomend changing The ordinary German to: Most Germans at that time. I completely agree that a paragraph is not limited to five or six sentences. However, maybe you could combine the last two sentences by cutting out ". He would" and just put "to" in its place. Maybe you should add something to first sentence about Hitler rising or add something in your last sentence that explains he started World War II because right now, World War II is mentioned only once and Hitler is only mentioned in the bottom half of your paragraph which makes it seem to drag a little, tiny bit off topic.