Original sentence: A 2006 report by the SIGIR notes that out of the 370,000 weapons turned over to the US since the fall of Saddam's regime, only 12,000 serial numbers have been recorded.The Iraqi Army continues to face significant challenges securing an adequate weapons supply because its equipment plans have never matched the threats it has faced.The lack of proper accounting for these weapons makes small arms proliferation to anti governmental forces such as insurgents or sectarian militias much easier.This has led to highly publicized deaths and compromised operations (perhaps the most prominent being an Iraqi suicide bomber detonating his vest inside a US military base near Mosul killing more than 20 people )
Edited sentence: Also, Saddam's troops used to use Soviet-made weapons, and many if not most of the soldiers of the New Iraqi Army are veterans of the old army.One of the reasons for this is that the US administration is quite clearly worried about giving inexperienced Iraqi troops equipment which could end up in the hands of the insurgents.The new army may have to take some time to be trained for the use of newer weaponry.This has led to highly publicized deaths and compromised operations (perhaps the most prominent being an Iraqi suicide bomber detonating his vest inside a US military base near Mosul killing more than 20 people).Whilst US troops have state of the art equipment, Iraqi troops have had to make do with a far lesser degree of sophistication and quality