 Throughout its lifespan, it employed approximately 5,700,000 regulars, in 370 Standard Divisions (), 46 New Divisions (), 12 Cavalry Divisions (), eight New Cavalry Divisions (), 66 Temporary Divisions (), and 13 Reserve Divisions (), for a grand total of 515 divisions.However, many divisions were formed from two or more other divisions, and many were not active at the same time.The number of active divisions, at the start of the war in 1937, was about 170 NRA divisions.