The US estimated that the Iraqi Army was operating 300 AMLs in 1990. Iraq lost about half its armoured reconnaissance vehicles during the Gulf War. A small number of AML-90s and AML-60s remained in service, although they were increasingly threatened by erratic maintenance and lack of spare parts. When a US-led coalition invaded Iraq in 2003, Iraqi AMLs clashed with a contingent of American tanks attached to 3rd Battalion, 4th Marines as they advanced on Nasiriyah.