In July 1976, the International Institute for Strategic Studies estimated the army consisted of 22,000 personnel, 6 tank battalions, 9 mechanised infantry battalions, 5 infantry battalions, 2 commando battalions, and 11 artillery battalions (5 anti-aircraft). Two hundred T-34 and 50 T-54/55 main battle tanks had been estimated to have been delivered. The IISS emphasised that 'spares are short and not all equipment is serviceable.' The U.S. Army "Area Handbook for Somalia", 1977 edition, agreed that the army comprised six tank and nine mechanised infantry battalions, but listed no infantry battalions, the two commando battalions, five field artillery, and five anti-aircraft battalions.