Acting Defense Secretary Patrick Shanahan, backed by top brass and senior Pentagon officials, has directed the Army and Missile Defense Agency -- along with the Joint Staff -- to resolve by mid-June a $10 billion dispute that for years has bedevilled plans to transition responsibility for the Terminal High Altitude Area Defense system from the agency to the service. The Missile Defense Review sets a six-month deadline for sorting out exactly how many THAAD batteries the Army requires -- a...