 Intelligence has been an essential element of Army operations during war as well as during periods of peace.In the past, requirements were met by personnel from the Army Intelligence and Army Security Reserve branches, two-year obligated tour officers, one-tour levies on the various branches, and Regular Army officers in the specialization programs.To meet the Army's increased requirement for national and tactical intelligence, an Intelligence and Security Branch was established in the Army effective 1 July 1962, by General Orders No.