How and why did Germany’s role in the EU change since 1945?

It is a historic-political essay. It must contain a introduction, a body, a conclusion and a bibliography. It is really important that the essay is well structured and that in the introduction the subject is explained and that you have a short summary of what the essay will be talking about. I will attach examples about essays, to see how it is done. With this I mean that the parts of the writing are not physically divided but are well connected through good topic sentences and that during the reading you can distinguish each part well. It must have a maximum of 2500 words including the food notes (which is required to write for the reference that you have used in each page), do not count the title page (essay title), bibliography or translations of quotations in the word length. It is necessary that there are multiple references in the essay and also a bibliography at the end of the work.