Australian Army M1A1 Abrams live fire exercise at Exercise Predator Run, May 6, 2017. 59 Australian Army M1A1 (AIM) configuration tanks (hybrids with a mix of equipment used by U.S. Army and U.S. Marine Corps but without depleted uranium layers in armor). These tanks were bought from the U.S. in 2006 and replaced the Leopard AS1 in 2007. In 2017, Anthony Duus has called for more M1s for a total of 90 tanks.