The M1A1 Abrams main battle tank was manufactured by General Dynamics Land Systems (GLDS). In 1978, the first M1 tank was produced, the M1A1 in 1985 and the M1A2 in 1986. There were 3,273 M1 tanks produced for the US Army. 4,796 M1A1 tanks were built for the US Army, 221 for the US Marines and 880 co-produced with Egypt. In March 2004, the Australian Army purchased 59 US Army M1A1 tanks to enter service from 2007. The contract was signed in 2005 and the first five were handed over in February 2006 at GDLS in Lima, Ohio. In September 2006, the first 18 tanks were delivered to the Australian Army at the School of Armour in Victoria and the remaining 41 are scheduled to arrive in Australia in March 2007. In June 2006, Saudi Arabia requested the foreign military sale of 58 M1A1 tanks and the upgrade ones and the 315 M1A2 and the 315 M1A2 already in the Saudi inventory to M1A2S configuration.