In North Korea, ‘Surgical Strike’ Could Spin Into ‘Worst Kind of Fighting

SEOUL, South Korea — The standoff over North Korea’s nuclear program has long been shaped by the view that the United States has no viable military option to destroy it. Any attempt to do so, many say, would provoke a brutal counterattack against South Korea too bloody and damaging to risk.

That remains a major constraint on the Trump administration’s response even as North Korea’s leader, Kim Jong-un, approaches his goal of a nuclear arsenal capable of striking the United States. On Tuesday, the North appeared to cross a new threshold, testing a weapon that it described as an intercontinental ballistic missile and that analysts said could potentially hit Alaska.

Over the years, as it does for potential crises around the world, the Pentagon has drafted and refined multiple war plans, including an enormous retaliatory invasion and limited pre-emptive attacks, and it holds annual military exercises with South Korean forces based on them.

On Wednesday, the Trump administration made a point of threatening a military response. Gen. Vincent K. Brooks, commander of the American forces that conducted a missile exercise with South Korea, said the United States had chosen “self-restraint” with the North. Nikki R. Haley, the American ambassador to the United Nations, said her country’s “considerable military forces” were an option. “We will use them if we must, but we prefer not to have to go in that direction,” she told the Security Council.