Iron Dome is an Israeli mobile all-weather air defense system developed by Rafael Advanced Defense Systems and Israel Aerospace Industries. It is designed to intercept and destroy short-range rockets and artillery shells fired from distances of 4 kilometers (2.5 miles) to 70 kilometers (43 miles) away and whose trajectory would take them to an Israeli populated area. The system has three central components: Detection & Tracking Radar, Battle Management & Weapon Control, and Missile Firing Unit. The radar system is built by Elta, an Israeli defense company and subsidiary of Israel Aerospace Industries, and by the IDF. The control center is built for Rafael by mPrest Systems, an Israeli software company. The Iron Dome has a high success rate, with a 96% success rate according to U.S. Pentagon officials. It has become a mainstay of Israels defense since its introduction in 2011. The system was designed to respond to threats from Gaza and Southern Lebanon. The Iron Dome is part of Israels Missile Defense Organization (IMDO), which has several other systems.