The service is looking for sled- or pallet-mounted weapons that can be hauled by light manned and unmanned vehicles during ...

The U.S. and Israel say they've depleted most of Iran's missile arsenal, but its weapons — including controversial cluster munitions — are challenging even the most advanced air-defense systems.

More and more, drones are being found flying over military bases. The U.S. Air Force is developing new strategies to defend against unmanned aerial systems.