 The 4th ACCS also maintained an EC-135C or EC-135G on ground alert at Ellsworth as the West Auxiliary Airborne Command Post (WESTAUXCP), which was a backup to SAC's Operation Looking Glass Airborne Command Post (ABNCP), as well as a radio relay link between the Looking Glass and ALCCs when airborne.Although equipped with ALCS, the WESTAUXCP did not have a dedicated Minuteman ICBM wing to provide ALCS assistance to.In September 1996, the squadron deployed to Brindisi, Italy, supporting Operation Joint Endeavor in the skies over Bosnia and Herzegovina.