The XMBT-1 Program is a joint military project to create a new Main Battle Tank to replace the M1 Abrams by the USNA Army and the USNA Marine Corps. Even though only several prototypes have been created and it will still take a long time to get into full production the XMBT-1 is clearly superior to the Abrams in all categories (especially defense). It is estimated that the tank will be ready for production in 2009. The USNA Army plans to purchase up to 10,000 XMBT-1s and move all existing M1 Abrams (which aren't really obsolete yet) into an expanded Army reserve and National Guard. The Marine Corps only plans to purchase around 1,000 XMBT-1s due to the fact that it does not require large armored forces.