Soldiers who remain on duty because Stop-Loss prevents them from leaving will soon receive the $500 per month they were promised, the Army announced. Also, the number of soldiers affected by Stop-Loss will begin decreasing. Beginning in August, the Army Reserve will no longer mobilize units under Stop-Loss; the National Guard will follow suit in September. The active Army will stop deploying Stop-Loss soldiers in January 2010. Stop-Loss was implemented in 2001, shortly after the terrorist attacks on New York and the Pentagon, in order to maintain troop levels necessary to wage combat in Iraq and Afghanistan. To date, roughly 13,000 soldiers in the three components remain on duty under Stop-Loss.