Army leaders across all areas of responsibility shared the challenges they face in efforts to meet the threat posed by adversaries' small, uncrewed aerial systems this week, but one similar refrain remained -- the U.S. military's response must be layered. “I will tell you, we’ve got a lot of senior leaders that understand it’s a layered effect, layered defense -- and no one ‘silver bullet’ is going to solve this problem,” Maj. Gen. David Stewart, director of the Joint Counter-small...