NATO is acquiring an Alliance Ground Surveillance (AGS) system that will give commanders a picture of the situation on the ground in an area of interest. The NATO-owned and -operated AGS Core capability will enable the Alliance to perform persistent surveillance over wide areas from high-altitude, long-endurance, unmanned air platforms operating at considerable stand-off distances and in any weather or light condition. Using advanced radar sensors, the AGS Core will continuously detect and track moving objects throughout the observed areas, as well as providing radar imagery of areas and stationary objects. The NATO AGS system will be a key asset for Joint ISR (JISR).
In September 2009, the NATO Alliance Ground Surveillance Management Agency (NAGSMA) has been established, after all 15 Participating Nations had signed the AGS Programme Memorandum of Understanding. NAGSMA will be responsible for the procurement of the NATO AGS capability until it has reached Full Operational Capability.
 AGS Participating Nations: Bulgaria, Czech Republic, Denmark, Estonia, Germany, Italy, Latvia, Lithuania, Luxembourg, Norway,Poland, Romania, Slovak Republic, Slovenia, USA