North Korea, if not stopped, will build an arsenal with multiple nuclear missiles meant to threaten the U.S. homeland and blackmail us into abandoning our allies in Asia. North Korean dictator Kim Jong Un will sell these weapons to state and nonstate actors, and he will inspire other rogue actors who want to undermine the U.S.-backed postwar order. These are real and unprecedented threats. But the answer is not, as some Trump administration officials have suggested, a preventive military strike. Instead, there is a forceful military option available that can address the threat without escalating into a war that would likely kill tens, if not hundreds, of thousands of Americans.

When I was under consideration for a position in this administration, I shared some of these views.

Some may argue that U.S. casualties and even a wider war on the Korean Peninsula are risks worth taking, given what is at stake. But a strike (even a large one) would only delay North Korea’s missile-building and nuclear programs, which are buried in deep, unknown places impenetrable to bunker-busting bombs. A strike also would not stem the threat of proliferation but rather exacerbate it, turning what might be a North Korean moneymaking endeavor into a vengeful effort intended to equip other bad actors against us.