The Ninth Army was a field army of the United States Army during World War II. It was established in 1944 and played a significant role in the European Theater, particularly during the Battle of the Bulge and the Rhine River crossing. The army was known for its effective coordination of ground forces and support units. After the war, the Ninth Army was inactivated in 1946. It was reactivated in 1950 during the Korean War but was again inactivated in 1954. The Ninth Army's legacy continues to be recognized in military history for its contributions to the Allied victory in Europe.