Explanation :

• The Patriot (MIM-104) is a long-range, all-altitude, all-weather air defence system to counter tactical ballistic missiles, cruise missiles and advanced aircraft.
• The Patriot System replaced the Nike Hercules system as the U.S. Army's primary High to Medium Air Defense (HIMAD) system, and replaced the MIM-23 Hawk system as the U.S. Army's medium tactical air defense system.
• The missile has a range of 70km and a maximum altitude greater than 24km.
• It is equipped with a track-via-missile (TVM) guidance system.
• Midcourse correction commands are transmitted to the guidance system from the mobile engagement control centre.