Finally a history question, something I can work with, The Liberation of France in the Second World War was accomplished through diplomacy, politics, and the combined military efforts of the Allied Powers, Free French forces in London and Africa, and the French Resistance. Nazi Germany invaded France in May 1940.
German resistance melted away during the night. Most of the 20,000 troops surrendered or fled, and those that fought were quickly overcome. On the morning of August 25, the 2nd Armored Division swept clear the western half of Paris while the 4th Infantry Division cleared the eastern part. Paris was liberated.