The New York Times reports: 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.

But the military options are more grim than ever.

Even the most limited strike risks staggering casualties, because North Korea could retaliate with the thousands of artillery pieces it has positioned along its border with the South. Though the arsenal is of limited range and could be destroyed in days, the United States defense secretary, Jim Mattis, recently warned that if North Korea used it, it “would be probably the worst kind of fighting in most people’s lifetimes.”

Beyond that, there is no historical precedent for a military attack aimed at destroying a country’s nuclear arsenal.

The last time the United States is known to have seriously considered attacking the North was in 1994, more than a decade before its first nuclear test. The defense secretary at the time, William J. Perry, asked the Pentagon to prepare plans for a “surgical strike” on a nuclear reactor, but he backed off after concluding it would set off warfare that could leave hundreds of thousands dead.

The stakes are even higher now. American officials believe North Korea has built as many as a dozen nuclear bombs — perhaps many more — and can mount them on missiles capable of hitting much of Japan and South Korea. [Continue reading…]