The Army uses a defensive weapon stripped from Navy vessels to shoot down enemy rockets and mortars before they can reach friendly troops. And, as a free bonus, they tell nearby artillery units where the enemy's shot came from, allowing for quick retaliation.
Phalanx weapons were originally fielded as a Close-In Weapon Systems on Navy ships. Raytheon — responding to an Army request for weapons that would shut down mortar and rocket attacks on coalition bases in Iraq — pitched the Phalanx for the new mission.
Specialist. Jamael O. Turner, of Nashville, Tenn., shows one of the first rockets his unit shot down with the counter rocket artillery and mortar at Joint Base Balad, Iraq. (Photo: U.S. Army)
And the Land-Based Phalanx Weapons System performs. A radar scans the air near protected bases. When it sees an incoming round that could threaten personnel or equipment, the gun and a camera-based tracking system turn to watch it.
At the optimal moment, the Phalanx fires a long stream of self-destructing 20mm rounds from it's six-barrel Gatling gun. The weapon can fire 75 rounds per second.
Soldiers from Battery A, 2nd Battalion, 44th Air Defense Artillery Regiment, 101st Sustainment Brigade, 101st Airborne Division (Air Assault), load ammunition into a Land-Based Phalanx Weapon System at Fort Sill. (Photo: U.S. Army 1st Lt. Lee-Ann Craig)
When that unit can get eyes on the shooter, they're able to quickly fire counter artillery, destroying the jerks who took the shot in the first place.