155mm Satellite-Guided Artillery Shells
M982 Excalibur satellite-guided heavy artillery shells. Excalibur first was fielded in Iraq in 2007 for urban or complex-terrain engagements in which collateral damage must be kept to a minimum.
Excalibur has a ruggedized Global Positioning System (GPS) satellite navigation receiver and uses satellite signals to help guide itself to its intended targets. The 155-millimeter artillery shell can hit targets as far away as 25 miles, or detect and attack moving targets in cities and other complex terrain after being fired at high angles and high altitudes.