The JNA organization and structure after "Jedinstvo 1" consisted of the Ground Forces, Air Force and Navy. Under reforms through "Jedinstvo" plan it was planned to reorganize from army's structure into four major army area called "Vojna oblast" under command of SSNO(equivalent of General Staff) - "Vojna oblast" or military regions were further divided into corps, garrisons and smaller districts and sectors that were responsible for administrative tasks such as draft registration, mobilization, and construction and maintenance of military facilities. The regions were: