The New International Relations of Sub-regionalism ― Asia and Europe

In the context of the end of the Cold War and the spread of globalism, sub-regions are attracting attention as new social units of international society never before observed. In the "second wave" of regionalism that became active in the 1980s, a new regionalism, which differed qualitatively from the old regionalism, expanded globally. This "New regionalism" is characterized by multi-dimensionality, complexity, fluidity, and non-conformity, and within it we cannot overlook the fact that spaces on a new scale, such as sub-regions, are being formed in various parts of the world. The sovereign state system that has continued unbroken since the Westphalia Treaty is being transformed, and within this context, the increase in the number of sub-regions as new social units adds to the sense that we have arrived at a post-Westphalian international order.

This book focuses on sub-region as a new social unit of international society. It is based on the findings obtained through meticulous fieldwork and joint studies conducted over the past 10 years by about 20 researchers, primarily from Japanese universities and Chiang Mai University, Thailand. The sub-regions described here are mostly international cross-border spaces or units in the interior of a certain region, which include: multiple states, states and parts of states, or more than two parts of states (often referred to as micro-regions). Such sub-regions have been formed in various parts of the world since the end of the Cold War.

Hidetoshi Taga is Professor of Social Sciences at Waseda University, Japan

Seiichi Igarashi is Associate Professor in Graduate School of Social Sciences at Chiba University, Japan