At the end of 2017, the United States announced in its National Security Strategy, that it would respond firmly to rogue states and rivals to the United States' institutions and its values. Particularly, China, Russia as well as North Korea were stipulated as threats to the national interests of the US and it was revealed the US would respond to security threats by strengthening security cooperation with its regional allies including South Korea and Japan in East Asia, and other states in the Indo-Pacific region. Driven by globalization, it is the geopolitical reality of Northeast Asia in the inevitability of increased interdependence as well as coexistence between the countries, where it is divided into the dichotomous ideologies of the democratic camp which pursues freedom and the socialist camp which grounds itself on control. In this context, what are the strategic choices for the great powers and middle powers, and the path to how one can promote harmony and trust between them?