After a brief lull, North Korea has begun acting up again: Kim Jong Un has vowed to re-start the country’s nuclear program, has declared the near-60 year-old armistice between his country and South Korea “void”, and, in his latest provocation, has prevented workers from the South from entering the jointly-owned Kaesong Industrial Park, once a symbol of hopeful reconciliation. And so the usual cycle continues: Pyongyang rattles, Washington steams, and Beijing expresses “regret” and “hope” for peace on the Korean peninsula.