The Battle of Fort Driant was a constituent battle in the 1944 Battle of Metz, during the Lorraine Campaign and the greater Siegfried Line Campaign. The battle was on occupied French territory between the liberation forces of the United States Third Army under the command of General George S. Patton and the occupation forces of Nazi Germany under General Otto von Knobelsdorff. It is the site of one of Patton's few setbacks in World War II, along with the rest of the Metz battle.