As with all things military, why have one project in a well funded area, when you can have many?! Army - Patriot Army / Missile Defense Agency - THAAD Army /

As with all things military, why have one project in a well funded area, when you can have many?! Army - Patriot Army / Missile Defense Agency - THAAD Army / Air Force / Missile Defense Agency - Ground-Based Midcourse Defense w/ GMI Navy - Aegis w/ SM-3 (also, Aegis Ashore)