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As I am sure everybody knows after the Franco-Prussian war Germany acquired a chunk of land of France, referred to as Alsace-Lorraine. France was... unhappy about this to say the least. My question is, how would France have reacted if the Germans took less area? Here is an image of the territory the Germans annexed:



Assuming Germany annexed all of the area it did OTL, minus the pink and orange areas how would Franco-German relations be different? Could this effect World War One / prevent it? What would change?
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