According to Frederick's deployment, Kilchbach's Fifth Army and Heixinggen Brigade are mainly to prevent the French Rhine Corps from moving south to support the Chalon Corps.
Currently, Napoleon III himself began to concentrate forces, to prevent Prussia from cutting off McMahon from the Rhine Corps he commanded, causing them to be surrounded on both sides. He ordered the French Fifth Army to immediately move south to support Marshal McMahon's forces.
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"Your Highness Leopold, next you will be deployed in Valdovisang. I and the Fifth Army will hold Saverna. How about that?"
