Government, media, and those who identify with the organization generally use Sepāh-e Pâsdârân (Army of the Guardians), although it is not uncommon to hear Pâsdârân-e Enghelâb () (Guardians of the Revolution), or simply Pâsdârân () (Guardians) as well. Among the Iranian population, and especially among diaspora Iranians, using the word Pasdaran indicates hatred or admiration for the organization. Most foreign governments and the English-speaking mass media tend to use the term Iranian Revolutionary Guards (IRG) or simply the Revolutionary Guards. In the US media, the force is frequently referred to interchangeably as the Iranian Revolutionary Guard Corps or the Islamic Revolutionary Guard Corps (IRGC). The US government standard is Islamic Revolutionary Guard Corps, while the United Nations uses Iranian Revolutionary Guard Corps. Organization The force's main role is in national security. It is responsible for internal and border security, law enforcement, and also Iran's missile forces. IRGC operations are geared towards asymmetric warfare and less traditional duties. These include the control of smuggling, control of the Strait of Hormuz, and resistance operations. The IRGC is intended to complement the more traditional role of the regular Iranian military, with the two forces operating separately and focusing on different operational roles. The IRGC is a combined arms force with its own ground forces, navy, air force, intelligence, and special forces. It also controls the Basij militia. The Basij is a volunteer-based force, with 90,000 regular soldiers and 300,000 reservists. The IRGC is officially recognized as a component of the Iranian military under Article 150 of the Iranian Constitution. It is separate from, and parallel to, the other arm of Iran's military, which is called Artesh (another Persian word for an army). Especially in the waters of the Persian Gulf, the IRGC is expected to assume control of any Iranian response to attacks on its nuclear facilities. History and structure The IRGC was formed on 5 May 1979 following the Islamic Revolution of 1979 in an effort to consolidate several paramilitary forces into a single force loyal to the new government and to function as a counter to the influence and power of the regular military, initially seen as a potential source of opposition because of its traditional loyalty to the Shah. From the beginning of the new Islamic government, the Pasdaran (Pasdaran-e Enghelab-e Islami) functioned as a corps of the faithful. The Constitution of the Islamic Republic entrusted the defense of Iran's