The Battle of the Vosges and Alsace was a series of battles fought from September 15, 1944, to February 15, 1945, in the Vosges Mountains and the Alsace region during World War II. The engagements involved Free French and American forces advancing against German defenses established in the mountainous region. Background. The battle followed the successful Normandy and Provence landings. The American 3rd Army under General George S. Patton advanced from the north, while French forces led by General Jean de Lattre de Tassigny pushed from the south. Their junction occurred on September 12, 1944, at Montbard, under the command of SHAEF and General Dwight D. Eisenhower. Combat Operations. German forces, including the 19th Army under General Friedrich Wiese, regrouped in the Vosges Mountains, using the Route des CrĂȘtes and other natural defenses to slow the Allied advance. French and American units faced fierce resistance, harsh terrain, and coordination difficulties. Notable units included the French 3rd Algerian Infantry Division (3e DIA), the 2nd Armored Division (2e DB), and the U.S. 442nd Regimental Combat Team, made up largely of Japanese-American soldiers (nisei). Difficulties. The campaign was marked by: Aftermath. The German defensive line was eventually broken, allowing the Allies to push toward Strasbourg, which was liberated on November 23, 1944. The battle demonstrated the critical role of both colonial troops and Japanese-American soldiers in the liberation of France.