HUNTSVILLE, AL -- In order to maintain its strategic and operational advantage in the future, the Army "must challenge and change the status quo," according to the head of Army Materiel Command. During remarks this morning at the Association of the United States Army's Global Force Symposium, Gen. Gus Perna described the dynamic strategic environment, citing theaters in which potential adversaries are employing advanced capabilities. "Today we're not worried," he said. "But it's tomorrow we must think about." Perna drew...