I've recently read up a bit on french revanchism in the late 1800s, but I can't seem to understand the big deal with Alsace and Lorraine. Of course, It's always humiliating to loose territory, but Alsace-Lorraine is so small, and the Germans did have security and ethnic based claims. If anyone could point me at some online article that explains the subject, or is willing to just post what they know here, I'd appreciate it.