USAF
Today, satellite-guided precision air-to-ground munitions are a familiar part of aerial warfare for the U.S. military and many of its allies and foes alike. The Joint Direct Attack Munition, or JDAM, is perhaps the best-known such weapon and is now almost ubiquitous, with a range of different versions available. Almost forgotten today, however, is its immediate precursor, the pioneering GPS Aided Munition, or GAM, the first weapon of its kind, which emerged from a quick-reaction program to provide more flexible conventional weapons options for the B-2A Spirit stealth bomber.