The 398th Air Expeditionary Group is a provisional United States Air Force unit assigned to the United States Air Forces in Europe. The 398 AEG may be activated or inactivated at any time. During World War II, its predecessor unit, the 398th Bombardment Group (Heavy) was an Eighth Air Force B-17 Flying Fortress unit in England, stationed at RAF Nuthampstead. The group flew 195 combat missions, the last being on 25 April 1945. History World War II The group was constituted as the 398th Bombardment Group (Heavy) on 15 February 1943, and equipped with the B-17 Flying Fortress. It was activated 1 March 1943 at Ephrata Army Air Base, Wash., with the 600th, 601st, 602d, and 603d Bombardment Squadrons. The Group assembled at Blythe Army Airfield, California, and then moved to Geiger Field, Washington, on 20 April 1943 to complete training. On 20 June 1943 moved to Rapid City Army Air Base, South Dakota, to take up Replacement Training Unit duties. Trained 326 B-17 crews from August to December 1943 but at the beginning of the New Year reverted to training for combat. Ground echelon began movement overseas on 4 April 1944. The unit moved to Camp Myles Standish, Massachusetts, on 7–12 April 1944. Personnel embarked on USS Wakefield. Sailed to Boston on 13 April, and arrived in Liverpool on 21 April 1944. Moved to England in April 1944 and assigned to Eighth AF. The 398th BG entered combat in May 1944, and until V-E Day operated primarily against strategic objectives in Germany, attacking targets such as factories in Berlin, warehouses in Munich, marshalling yards in Saarbrücken, shipping facilities in Kiel, oil refineries in Merseburg, and aircraft plants in Münster. The group temporarily suspended strategic missions to attack coastal defenses and enemy troops on the Cotentin Peninsula during the Invasion of Normandy in June 1944. The group struck gun positions near Eindhoven in support of the air attack on Holland in September 1944, and raided power stations, railroads, and bridges during the Battle of the Bulge, December 1944 – January 1945. The group flew missions attacking airfields to aid the Allied assault across the Rhine in March 1945. The 398th flew its last combat mission, attacking an airfield in Pilsen, Czechoslovakia, on 25 April 1945. After V-E Day the group transported liberated prisoners from Germany to France. From Nuthampstead, the 398th Bomb Group flew 195 combat missions. Redeployed USA in