This document contains summaries of basic manpower statistical data for the Department of Defense, with the Army, Navy, Marine Corps, and Air Force totals shown separately and collectively. Included are figures for active duty military personnel, civilian personnel, reserve components, and retired military personnel. Some of the data show personnel figures over a number of years, while others present only the most recent figures available at the time of publication. For example, the number of military personnel on active duty in the various armed forces is listed for every year from 1789 through 1939, and for selected periods from 1916 to 1972. Other tables display different aspects of the personnel data. (MF)