The High Energy Liquid Laser Area Defense System (HELLADS), is a Counter-RAM system under development that will use a powerful (150 kW) laser to shoot down missiles, rockets, and artillery shells. The initial system will be demonstrated from a static ground based installation, but in order to eventually be integrated on an aircraft, design requirements are maximum weight of 750 kg (1,650 lb) and maximum envelope of 2 cubic meters (70.6 feet3). Development is being funded by The Pentagon's Defense Advanced Research Projects Agency (DARPA).