This was an interesting idea: In the event of another war between the two Koreas, China would be just as likely to intervene on the side of the South as on that of the North, if only to prevent the United States from getting involved.
But the risk of intervention outweighs the risk of inaction for Beijing. China still considers instability in North Korea, or the political and military repercussions of trying to overturn the leadership there, a greater danger than Pyongyang's nuclear weapons program. It continues to believe, moreover, that for all Washington's bluster, the United States wouldn't follow through on military action to stop North Korea's missile development because doing so would risk starting an East Asian war. For China, which already lives with a nuclear-armed North Korea at its border, not to mention a nuclear India, Pakistan and Russia, Pyongyang's growing capabilities are a problem, but not an unmanageable one. The United States poses a bigger risk to its strategic interests. At the same time, China's options to respond have dwindled as Pyongyang has steadily restricted Beijing's communications and influence with it.
South Korea, too, has been coping with the North Korean military threat for decades. North Korea's nuclear program threatens South Korea, aimed as it is at the U.S. alliance structure. Nevertheless, Seoul understands that its national interests and those of Washington may diverge in the future, or at least not fully coincide. South Korea also foresees little danger of North Korea trying to reunify through force; U.S. support notwithstanding, Seoul's military capabilities have grown since 19 50, and the international system is no longer conducive to military action on Pyongyang's part. In the event of another war between the two Koreas, China would be just as likely to intervene on the side of the South as on that of the North, if only to prevent the United States from getting involved.
Seoul and Beijing are each interested in managing the situation and forestalling conflict rather than in resolving the issue immediately. The advancement in North Korea's ballistic missile range, though a paradigm shift for the United States, represented only a small change for the region's overall security. Consequently, South Korea and China are trying to convey through their remaining channels with North Korea that they are willing to delay a crisis to shield Pyongyang from potential military action. Their assurances may embolden North Korea, but for Seoul and Beijing alike, delaying a confrontation is the preferable path, especially since neither see much chance of a true compr omise between Washington and Pyongyang. China, meanwhile, maintains a sliver of hope that Washington may eventually accept the reality in North Korea and adjust its behavior toward the government in Pyongyang accordingly, backing off from military threats in favor of dialogue and management.
Russia and Japan each play a slightly smaller role and differ in their views of the situation. Moscow, which wants to avoid a war but lacks much clout with Pyongyang, is using the crisis to emphasize the threat Washington poses to international peace and stability. And Japan feels the change in North Korea's nuclear development perhaps more acutely than does South Korea. The missiles Pyongyang has been testing serve a more valuable military purpose aimed at Japan and the U.S. ba ses there than they do trained on South Korea, a country that has long been within the demonstrated reach of North Koreas' missiles. Tokyo sees the standoff with North Korea as an opportunity to fortify its position as the key U.S. ally in the region and to counter China's growing influence. In addition, the threat of Pyongyang gives the Japanese government further justification for its decision to lift the constitutional restrictions on the use of its armed forces.