Phased Array Tracking Radar Intercept on Target (missile) (PATRIOT)
Phased Array Tracking Radar Intercept on Target (missile) (PATRIOT) : A point or limited area defense system originally built to intercept aircraft. PAC-3 improvements, which will give it greater capability against theater ballistic missiles, include upgrades to the radar and selection of an improved missile, either PATRIOT Multimode Missile or ERINT