# 535th Bombardment Squadron

The 535th Bombardment Squadron is an inactive United States Air Force unit. During World War II, the squadron engaged in combat in the European Theater of Operations, earning two Distinguished Unit Citations. It returned to the United States and was inactivated at Sioux Falls Army Air Field, South Dakota after V-E Day, but was active in the reserve from 1947 to 1949, although it is not clear whether it was fully equipped or manned.

## History
### World War II
#### Training in the United States

The squadron was first activated on 3 November 1942 at Gowen Field, Idaho as one of the four original squadrons of the 381st Bombardment Group. It gathered its initial cadre at Gowen, but only began training for combat with the Boeing B-17 Flying Fortress after moving to Pyote Army Air Field, Texas at the end of the year. On 8 May 1943, the ground echelon began moving to the port of embarkation at Camp Kilmer, New Jersey, and boarded the RMS Queen Elizabeth for the European Theater of Operations on 27 May. The air echelon marshalled at Salinas Army Air Field, Kansas and began movement by the North Atlantic Ferry Route on 15 May.

#### Combat in the European Theater

The air echelon of the squadron arrived at RAF Bovingdon in late May 1943. The following month, the squadron was reunited at RAF Ridgewell, which was to be its combat station for the rest of the war. The squadron entered the strategic bombing campaign against Germany, when it flew its first mission on 21 June, a diversionary attack against Antwerp. Its targets in France included an aircraft assembly plant near Villacoublay, and an engine plant at Le Mans, locks at Saint-Nazaire, and Amiens – Glisy Aerodrome. It also attacked an aircraft plant in Brussels, Belgium. During Blitz Week, it bombed nitrate factories in Heroya, Norway, stopping production for over three months.
The squadron also flew deeper penetration missions into Germany. It hit oil refineries at Gelsenkirchen, submarine pens at Kiel, aircraft plants at Kassel and Leipzig, industrial targets in Münster, marshalling yards at Offenberg, and the ball bearing plants at Schweinfurt. On 8 October 1943, despite heavy enemy interceptor opposition, it accurately struck shipyards at Bremen, for which it was awarded the Distinguished Unit Citation (DUC). All squadron bombers that returned from this mission received battle damage. It received a second DUC for attacks on aircraft plants in Germany on 11 January 1944. In late February 1944, the unit participated in Big Week, the intensive attacks on the German aircraft industry.
The squadron was occasionally taken off strategic operations to perform air support and interdiction missions. It bombed bridges and airfields near the beachhead to support Operation Overlord, the invasion of Normandy, in June 1944. The following month, it attacked positions of enemy forces opposing Operation Cobra, the breakout at Saint Lo. It supported Operation Market Garden, the airborne attacks in the Netherlands near Arnhem, in the fall. From December 1944, through January 1945, it attacked lines of communications and airfields near the battle zone during the Battle of the Bulge. It also supported the Allied crossing of the Rhine and push through central Germany in March 1945.

#### Return to the United States and inactivation

The squadron flew its last mission on 26 April 1945 and the majority of the unit's aircraft departed the theater on 24 May 1945. Ground personnel sailed on the RMS Queen Elizabeth on 24 June, arriving in the US by the end of the month. The squadron was located at Sioux Falls Army Air Field, South Dakota a few days later and was inactivated on 24 August 1945.

### Air Force reserve

The squadron was activated in September 1947 in the reserve at Offutt Field, Nebraska, where its training was supervised by the 4131st AAF Base Unit of Air Defense Command (ADC). It was again assigned to the 381st Group, which remained at Offutt Air Force Base when the squadron moved to at Lincoln Municipal Airport, Nebraska in February 1948. Although designated a very heavy bombardment group, it does not appear to have been fully manned or equipped. In 1948 Continental Air Command assumed responsibility for managing reserve and Air National Guard units from ADC. President Truman’s reduced 1949 defense budget required reductions in the number of units in the Air Force, and the 535th was inactivated In June 1949, as reserve flying operations at Lincoln Airport ended.

## Lineage

* Constituted as the 535th Bombardment Squadron (Heavy) on 28 October 1942
    Activated on 3 November 1942
    Redesignated 535th Bombardment Squadron, Heavy on 20 August 1943
    Inactivated on 28 August 1945
* Redesignated 535th Bombardment Squadron, Very Heavy on 25 August 1947
    Activated in the reserve on 15 September 1947
    Inactivated on 27 June 1949

### Assignments

* 381st Bombardment Group, 3 November 1942 – 28 August 1945
* 381st Bombardment Group, 15 September 1947 – 27 June 1949

### Stations

* Gowen Field, Idaho, 3 November 1942
* Ephrata Army Air Field, Washington, 1 December 1942
* Pyote Army Air Base, Texas, 5 January 1943
* Pueblo Army Air Base, Colorado, 6 April–8 May 1943
* RAF Ridgewell (Station 167), England, 2 June 1943 – 24 June 1945
* Sioux Falls Army Air Field, South Dakota, 3 July–28 August 1945
* Offutt Field (later Offutt Air Force Base), Nebraska, 15 Sep 1947
* Lincoln Municipal Airport, Nebraska, 12 February 1948 – 27 Jun 1949

### Aircraft

* Boeing B-17 Flying Fortress, 1942-1945

### Awards and campaigns

| Award streamer | Award | Dates | Notes |
| | Distinguished Unit Citation | 8 October 1943 | Bremen, |
| | Distinguished Unit Citation | 11 January 1944 | Germany, |
| Campaign | Dates |
| Air Offensive, Europe | 2 June 1943 – 5 June 1944 |
| Air Combat, EAME Theater | 2 June 1943 – 11 May 1945 |
| Normandy | 6 June 1944 – 24 July 1944 |
| Northern France | 25 July 1944 – 14 September 1944 |
| Rhineland | 15 September 1944 – 21 March 1945 |
| Ardennes-Alsace | 16 December 1944 – 25 January 1945 |
| Central Europe | 22 March 1944 – 21 May 1945 |