At first sight it seems that there is little in common between the security dynamics of Northeast Asia and South Asia. They are geographically situated in different parts of Eurasia. Their threat perceptions are different, being informed by their unique historical experience. These geostrategic particularities have molded their security postures.

Both these regions are distinguished by the presence of adversarial dyads North KoreaSouth Korea and PakistanIndia. These countries have singlemindedly pursued their quest for nuclear weapons, except for South Korea, that was dissuaded in its own nuclear endeavor by the by the United States.