Army Technology - GPS-Guided Mortars Used to Fight Afghan Insurgents: "The US Army will shortly deploy precision mortars to the field in Afghanistan to fight insurgents hidden in mountain ridge lines and other high positions.
As part of the army's accelerated precision mortar initiative (APMI), three companies, including Raytheon, General Dynamics, and Alliant Techsystems (ATK) are competing to develop a 120mm precision mortar compatible with the M120 system."