It was last assigned to the 380th Bombardment Wing at Plattsburgh Air Force Base, New York, where it was inactivated on 1 July 1991.

[1][2] The air echelon arrived at Fenton Airfield in the Australian Northern Territory by the end of April.

[citation needed] For the remainder of its stay in Australia, the squadron and the rest of the 380th Group would be attached to the Royal Australian Air Force (RAAF).

In August 1943, it participated in a series of raids on oil refineries in Balikpapan, Borneo in what at the time was the longest bombing mission flown by an Army Air Forces bomber unit.

During April and May of 1944, the unit conducted a series of raids on enemy airfields in western New Guinea to support landings in the Hollandia area, for which it was awarded a second DUC.

[2] On 23 April 1944, on a bombing run over Noemfoor Island, five aircraft of the 528th participated in the wildest shooting spree of the war for the squadron.

All reserve corollary units were mobilized for the Korean war,[6] and the squadron was called to active duty in May 1951.

[1] The squadron was again activated at Plattsburgh Air Force Base, New York in July 1955 as part of the 380th Bombardment Wing and equipped with Boeing B-47 Stratojets.

[7] Reflex placed Stratojets and Boeing KC-97s at bases closer to the Soviet Union for 90 day periods, although individuals rotated back to home bases during unit Reflex deployments [8] The percentage of SAC planes on fifteen minute ground alert, fully fueled and ready for combat to reduce vulnerability to a Soviet missile strike gradually grew over the next three years to reach the goal of 1/3 of SAC’s force on alert by 1960.

[12] Most dispersal bases were civilian airfields with AF Reserve or Air National Guard units.

[16] The squadron began to send its Stratojets to the Aerospace Maintenance and Regeneration Center at Davis-Monthan Air Force Base for retirement.

it also periodically flew "airborne alert indoctrination" missions, but accidents at Palomares in January 1966 and Thule in January 1968 contributed to the end of Operation Chrome Dome, as did rapidly rising costs of the program and the use of strategic bombers for non-nuclear missions, but the primary reason was the availability of a survivable intercontinental ballistic missile force.

[7] At the annual SAC bombing and navigation competition in 1974 a 528th crew won top honors and helped to bring the Fairchild Trophy to the 380th Wing.

This article incorporates public domain material from the Air Force Historical Research Agency