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If Molteke had sent the 2 Korps that had besieged Namur back to the right wing, instead of sending them to Russia. That means the Garde-reservekorps gets back to the 2nd German Army (and the XI.Armeekorps to the 3rd Army), what could that have changed? I suppose the Battle of Guise would have gone better for the Germans, but how much better? What is the likeliest thing to happen?