Fred Kaplan writes: North Korea is a knotty problem, but there’s no cause for the hysteria that President Trump and his aides have been pumping up in recent days, and it’s time to turn down the heat and the noise, before someone gets hurt.

The worry (and it’s a legitimate worry) is that, sometime soon, the North Koreans will test another ballistic missile or nuclear weapon, which would, yet again, violate a U.N. resolution and put them one step closer to threatening American troops and allies in East Asia—and maybe, years from now, the United States itself. But there is no immediate crisis, no threat that must be staved off now or never. And yet President Trump is sending an aircraft-carrier task force and a guided-missile submarine toward North Korean shores. At the same time, he has summoned all 100 U.S. senators to a classified briefing on the subject, to be conducted on Wednesday, at the White House, by the secretaries of defense and state, the director of national intelligence, and the chairman of the Joint Chiefs of Staff.

U.S. military exercises in the region are routine, as are top-secret briefings to select lawmakers. But to hold a briefing for all senators, by the administration’s top security officials, is unusual. To hold it at the White House (or, more precisely, the Executive Office Building next door to the White House), instead of in the Capitol, is unprecedented. And to do all this while the deadliest warships in the U.S. Navy’s non-nuclear fleet dart toward the country in question—well, the leaders in the region needn’t be paranoid to infer that Trump might be preparing to launch an attack on North Korea.

Still, it’s unlikely that Trump actually intends to launch an attack. By all accounts, his top advisers, U.S. allies in the region (especially the leaders of South Korea and Japan), and his new best friend, Chinese President Xi Jinping, are counseling against military action. But who knows what Trump is thinking from one moment to the next? His unpredictability and impulsiveness might have a deterring effect, as in an accidental version of Richard Nixon’s “madman theory.” Precisely because he doesn’t know how Trump will react, North Korean leader Kim Jong-un might tone down his provocative ways, even adopt a certain caution.

But let’s say Kim ignores Trump’s unwitting stab at the ploy and risks another missile or nuclear test. Will Trump—riled by Kim’s persistence or feeling a need to display “resolve” and “credibility”—launch a volley of cruise missiles and more at the test sites, at some nuclear facilities, or even at Kim’s hangouts in Pyongyang?

Most North Korea–watchers are convinced that, in this scenario, Kim would retaliate with an attack—possibly a bring-them-all-down-with-me attack—on U.S. bases and allies, not necessarily with nuclear weapons but with a barrage of artillery shells. North Korea’s military has thousands of these shells deployed on the border with South Korea (whose capital, Seoul, sits only 35 miles away) as well as on its eastern shore (within firing range of Japan). North Korea’s live-fire long-range artillery drills on Tuesday were no doubt meant as a “signal” of what Trump should expect if he follows through on his own threat.

No one could possibly want a military conflict, with hundreds of thousands, possibly millions, of casualties on both sides. But a mix of mutual bluff, bluster, ego, and insecurity—fueled by heavy firepower and an itchy trigger-finger or two—makes for a potentially lethal concoction. In the annals of history, wars have erupted from less combustive kindling. [Continue reading…]