System of Islam by Taqiuddin an-Nabhani

Article 51.

The directorate of the Amir of jihad consists of four departments, they are: External affairs, The military, The internal security, and Industry. The Amir of jihad is the supervisor and director of all four departments.

Article 52.

The Department of External Affairs directs the foreign affairs connected with the relationship of the state with foreign countries, whatever these affairs.

Article 53.

The Military Department oversees all affairs connected with the military forces, such as: the army, the police, equipment, tasks, armament supplies, etc. It also includes control of the military academies, military missions, and everything deemed necessary from the Islamic culture and the culture of the army and whatever is related to warfare and its preparation.

Article 54.

The Department of Internal Security oversees everything connected with security. It undertakes maintaining security in the country by means of the military forces, and uses the police as a means to maintain security.

Article 55.

The Department of Industry directs all affairs connected with industry, including heavy industry, such as the production of motors, engines and car bodies; metallurgical industries, electronics and light industry; and factories of private and public ownership connected with the military industry. All factories of whatever type should be established on the basis of the military policy.