SANG for four decades, from 1962 until 17 November 2010 when he appointed his son, Prince Mutaib bin Abdullah, as the new commander. In addition, three of his sons hold high positions within the organization. SANG's Deputy Commander was Prince Badr until 2010, who was a senior member of the Al Saud. Prince Mutaib was later arrested because of corruption and was imprisoned for a few months. Its general headquarters, located in Riyadh, directly controlled the three regional sectors and the training facilities and the King Abdulaziz Independent Mechanized Brigade of four battalions. The three regional (eastern, central, and western) sectors each command one or more mechanized or motorized brigades, several independent Security and Military Police and logistical battalions, but also the irregular fowj battalions. Structure The SANG was restructured with the help of the Vinnell Corporation into a light mechanized force equipped with over a thousand Cadillac Gage Commando armored fighting vehicles (replaced with LAV-25s in the 1990s). Its mobile force consisted of three mechanized brigades and five motorized infantry brigades. The militia portion consists of around 24 battalions of fowj, tribal warriors on "retainer". Brigades The twenty one SANG brigades include: King Abdulaziz Mechanized Brigade (KAAMB), the second of the original mechanized brigades formed in the late 1970s with Cadillac-Gage V-150 vehicles. These were replaced in the 1990s by the more-capable LAV series of tactical vehicles. This was also the brigade that fought at the Battle of Khafji. Its reported garrison in early 1991 was Al Hofuf. King Faisal Light Infantry Brigade (KFB) based in Medina King Khalid Light Infantry Brigade's strength is unknown Prince Mohammad bin Abdul Rahman Al Saud Light Infantry Brigade Imam Muhammad bin Saud Mechanized Brigade (IMBSMB) the first of two mechanized brigades created in the late 1970s with Cadillac-Gage V-150 vehicles. These were replaced in the 1990s by the more-capable LAV series of tactical vehicles. Prince Saad bin Abdul Rahman Mechanized Brigade (PSARMB)was formed in the late 1990s and equipped with LAV series of tactical vehicles Prince Turki bin Abdulaziz Mechanized Brigade (PTAMB) was formed by 2006 and equipped with LAV series of tactical vehicles King Saud Light Infantry Brigade (KSB) based in Jeddah Omar bin Khattab light infantry brigade based in al-Taif The two original motorized brigades, IMBSMB and KAAMB, had V-150 Commando armored cars, M‑102 howitzers (IMBS) and 155 mm M‑198 howitzers, plus TOW anti-tank guided missile systems in the anti-tank