 Elements of the battalion, although they mustered in northern California, were nonetheless some of the first California National Guard elements to occupy Montgomery Airfield in San Diego.In addition to other elements of the California National Guard, the battalion used Montgomery Airfield as their primary base of operations to conduct local civil support missions throughout San Diego County.The battalion augmented local security at several sites, including Qualcomm Stadium, that were established to support local residents who were forced to evacuate their homes.