army divisions, and total land force divisions reached 68 when the 12 Iraqi Republican Guard divisions were included. Eisenstadt notes that four Republican Guards security divisions were formed between the invasion of Kuwait and the outbreak of war. They remained in Iraq during the war. Although it was said at the time in Western media that Iraqi troops numbered approximately 545,000 (even 600,000) Friedman (1992) writes that the quantitative descriptions of the Iraqi army at the time were exaggerated, for a variety of reasons. Many of the Iraqi troops were also young, under-resourced and poorly trained conscripts. Saddam did not trust the army; among counterbalancing security forces was the Iraqi Popular Army. The wide range of suppliers of Iraqi equipment resulted in a lack of standardization. It additionally suffered from poor training and poor motivation. The majority of Iraqi armoured forces still used old Chinese Type 59s and Type 69s, Soviet-made T-55s & T-62s from the 1950s and 1960s, and some T-72s from the 1970s in 1991. These vehicles were not equipped with up-to-date equipment, such as thermal sights or laser rangefinders, and their effectiveness in modern combat was very limited. The Iraqis failed to find effective countermeasures to the thermal sights and the sabot rounds used by M1 Abrams, Challenger 1 and other tanks of the Allied forces. U.S. M1A1s could effectively engage and destroy Iraqi tanks from well outside the distance (e.g. 8,200 ft to Iraqi ranges of 6,600 ft) that Iraqi tanks could engage. The Iraqi tank crews used old, cheap steel penetrators against the advanced Chobham Armour of these US and British tanks, with disastrous results. The Iraqi forces also failed to utilize the advantage that could be gained from using urban warfare — fighting within Kuwait City — which could have inflicted significant casualties on the attacking forces. Urban combat reduces the range at which fighting occurs and can negate some of the technological advantage that well equipped forces enjoy. Iraqis also tried to use Soviet military doctrine, but the implementation failed due to the lack of skill of their commanders and the preventive air strikes of the USAF and RAF on communication centers and bunkers. While the exact number of Iraqi combat casualties has yet to be firmly determined, sources agree that the losses were substantial. Immediate estimates said up to 100,000 Iraqis were killed. More recent estimates indicate that Iraq probably sustained between