One is North Korea, whose recent behavior has been clever and deceptive. The North Koreans have violated their agreements, knowing that China, the country with the greatest potential leverage, is most concerned about regime collapse in North Korea, and thus the threat of chaos on its borders.
尽管如此，同盟还是在新的外部环境中面临三大挑战。其一是北朝鲜，它最近的举动既聪明又有欺骗性。北朝鲜违反协定，因为他们知道潜在影响力最大的中国最担心北韩政权崩溃，进而在中朝边境上造成混乱。