President Trump has given governors a stark choice: either end the protests that continue to demand equal justice under our laws, or expect that he will send active-duty military units into their states. While the Insurrection Act gives the president the legal authority to do so, this authority has been invoked only in the most extreme conditions when state or local authorities were overwhelmed and were unable to safeguard the rule of law. Historically, as Secretary Esper has pointed out, it has rightly been seen as a tool of last resort.

Beyond being unnecessary, using our military to quell protests across the country would also be unwise. This is not the mission our armed forces signed up for: They signed up to fight our nation’s enemies and to secure — not infringe upon — the rights and freedoms of their fellow Americans. In addition, putting our servicemen and women in the middle of politically charged domestic unrest risks undermining the apolitical nature of the military that is so essential to our democracy. It also risks diminishing Americans’ trust in our military — and thus America’s security — for years to come.