(Record Group 342) 1900-85, 1991 Overview of Records Locations Table of Contents 342.1 ADMINISTRATIVE HISTORY 342.2 AIR FORCE UNIT HISTORIES AND SUPPORTING RECORDS 1920-73 1,837 rolls of microfilm 342.3 RECORDS OF THE ENGINEERING DIVISION AND ITS PREDECESSORS 1916-51 342.4 RECORDS OF THE AIR FORCE SYSTEMS COMMAND AND ITS PREDECESSORS 1961-65 342.5 RECORDS OF THE AIR UNIVERSITY The first Special Forces unit in the Army was formed on 11 June 1952, when the 10th Special Forces Group was activated at Fort Bragg, NC. A major expansion occurred in the 1960s, with additional groups organized in the Regular Army, Army Reserve, and Army National Guard.