Air Force and Army officials will delve further into understanding joint, multidomain operations using three tabletop exercises held in the next six months, which will help the Army finalize the second version of its Multidomain Battle concept by summer 2019. Gen. Mike Holmes, the head of Air Combat Command, and Gen. Dave Perkins, who leads the Army's Training and Doctrine Command, have discussed better ways to wage war together over the last several months, as the Air Force completed its...