Lorraine Campaign and Operation Undertone both occurred during which war?
Operation Undertone Operation Undertone was a large assault by the U.S. Seventh and French 1st Armies of the U.S. Sixth Army Group as part of the Allied invasion of Germany in March 1945 during World War II.
Army of the Moselle The Army of the Moselle ("Armée de la Moselle") was a French Revolutionary Army from 1791 through 1795. It was first known as the "Army of the Centre" and it fought at Valmy. In October 1792 it was renamed and subsequently fought at Trier, First Arlon, Biesingen, Kaiserslautern, Froeschwiller and Second Wissembourg. In the spring of 1794 the left wing was detached and fought at Second Arlon, Lambusart and Fleurus before being absorbed by the "Army of Sambre-et-Meuse". In late 1794, the army captured Trier and initiated the Siege of Luxembourg. During the siege, the army was discontinued and its divisions were assigned to other armies.