At the end of the last century and the beginning of this century,the most influential remaining problem of the Cold War in Asian-pacific area is the situation of the Korean Peninsula.The separation of the peninsula and the confrontation between the two sides often solicit conflict,which in turn bring up unstable factors to the East-Asian political situation.The strategic status of the Korean Peninsula is of great importance and the benefits of the superpowers are closely interwoven here.The global strategic target and the adjustment of the regi...