North’s irrationality a concern, Pentagon says

North Korean leader Kim Jong-un’s execution of his uncle last week is an example of the worrisome unpredictability of that regime and could be a prelude to some kind of provocation by Pyongyang, top officials at the U.S. Department of Defense said Thursday.

The execution of Jang Song-thaek on Dec. 12 was the biggest upheaval in years in North Korea, which has conducted three nuclear tests and this year raised the possibility of nuclear war with South Korea and the United States.

“These kind of internal actions by dictators are often a precursor to provocation to distract attention from what they’re doing inside of that country,” General Martin Dempsey, chairman of the U.S. military’s Joint Chiefs of Staff, told a Defense Department news conference.

The reclusive state’s official Korean Central News Agency (KCNA) said last week that Jang had been executed for trying to seize power and for driving the economy “into an uncontrollable catastrophe.”

But North Korean politics are virtually impenetrable from outside. Analysts have speculated, for instance, that Jang could have been purged over a falling out with Kim or other personal reasons.

U.S. Defense Secretary Chuck Hagel said that uncertainty about North Korea’s motives is “concerning to everyone.”

“That nation is as closed as any nation in the world. There is no transparency,” Hagel said. “And so when you see things like this occur, it heightens the reaction of what people think .?.?. could happen, with that kind of unpredictability.”

Dempsey did not explicitly say what kind of provocation he feared from the North. The United States blames it for the 2010 sinking of the Cheonan, a South Korean warship.

Tensions were heightened earlier this year during U.S.-South Korean military drills that Pyongyang branded a “rehearsal for invasion.”

In a rare show of force during the drills last year, two nuclear-capable, bat-winged B-2 stealth bombers flew 37 and a half hours from their U.S. base to drop dummy munitions on a South Korean range, and then returned home. The next edition of those annual drills is expected to be held in March, a Defense Department spokesman said. Reuters