The United States, Russia, and China have cooperated to help deter North Korea from again invading the South and thus preventing Korean tensions to become a devastating hot war. While their interests have contributed to relative stability, they do not exactly complement those of South Korea, which, for example, envi- sions tomorrow’s Northeast Asia to include truly peaceful coexistence followed by a unified Korea at some point in the future. Consequently, their policies have significant implications for Seoul’s security planning. This paper recommends Seoul expand its public diplomacy to the surrounding powers and establish a Korean National Guard, among other measures.