"When presidents use the armed forces for more politically contentious missions, such as addressing domestic crime in cities, the work of the military becomes more fraught," former Chairman of the Joint Chiefs of Staff. "Resorting to a military solution rather than fixing the underlying incapacity or dysfunction in civilian institutions diverts the military from focusing on its primary combat mission," the authors continued. "And … it is not the military's job to save the republic from political impasses. Indeed, if you ask too much of the military, you risk the entire enterprise."