This undated photo distributed on Friday, June 9, 2017, by the North Korean government, shows a test of a new type of cruise missile launch at an undisclosed location in North Korea - file photo. Maneuvering cruise missiles, fast-moving stealthy fighter jets, armed drones, long-range helicopter-fired air-to-ground weapons and hypersonic rounds traveling at five times the speed of sound are all modern methods of air-attack able to destroy Army ground war units -- potentially even rendering them inoperable or, even worse, making them vulnerable to complete destruction. The weapons, sensors and platforms now operated by potential adversaries have created an entirely new tactical environment now defining land combat, a scenario that has inspired the U.S. Army to fast-track new, advanced air and missile defense radar technologies sufficient to thwart this changing sphere of enemy attack possibilities. The service is now surging forward in response to an urgent need with a new 360-degree radar system called Lower Tier Air & Missile Defense Sensor (LTAMDS), slated for initial fielding by 2022. Unlike the more linear directional configuration of the existing Patriot air and missile defense system, the Raytheon-built LTAMDS is engineered with overlapping 120-degree arrays intended to seamlessly track approaching threats using a 360-degree protection envelope.