Redstone Arsenal is starting to test a new air defense vehicle for the Army. The Arsenal was tasked with finding a way to attack growing threats in the air, including drones. It’s called I M SHORAD, and the blueprints all came together on Redstone Arsenal. "It all started about 18 months ago when the Army identified that we had this existing gap and they charted our office to find the right material solution to fill that gap," said Col. Chuck Worshim, cruise missile defense systems. That existing gap, Worshim said, is in short range air defense for the Army.