270th Engineering Installation Squadron
The 270th Engineering Installation Squadron (270th EIS) is a cyberspace engineering & installation unit located at Biddle Air National Guard Base, Pennsylvania, United States of America. History The 270th Engineering Installation Squadron was originally activated at Philadelphia International Airport, Philadelphia, Pennsylvania as the 603rd Signal Light Construction Company on 12 April 1949. Federal recognition of the unit was extended on 17 May 1949 when the unit's manpower consisted of 2 officers and 11 Airmen. By 1 Jan. 1951, the unit reached strength of 5 officers and 86 Airmen. When the 111th Bombardment Group, the unit's Pennsylvania Air National Guard host, was mobilized on 10 April 1951 for the Korean War, the 603rd was left as the only Air Guard unit in Philadelphia. Due to the large amount of military air traffic in the area, one officer and six Airmen were placed on permanent duty with a mission to refuel and service military aircraft; maintain operational service and logging record on a 24-hour, 7-day per week basis. The wire construction mission continued with the unit winning several awards for military professionalism. On 1 Oct. 1952 the unit was reorganized and designated as the 270th Communications Squadron, Operations. The mission was changed