Cooperation and coordination in a context of animosity? East Asia, peacekeeping operations and humanitarian assistance and disaster relief

East Asia (here consisting of China, Japan, North and South Korea, and the ten states of the ASEAN) is increasingly being considered as a region which is a potential crucible for conflict. Even the most optimistic authors recognise that there is the potential for security tensions to develop into more comprehensive kinetic actions. In the context of the growing trade tensions between China and the United States, which is drawing in other regional actors, the potential for economic interdependence to mitigate these tensions is reducing. Despite the context in this region we do, however, see evidence of cooperation and coordination emerging within the arena of (so-called) non-traditional security challenges. These papers explore different aspects of the cooperation that we see, and collectively they present the conditions under which there are positive cooperation outcomes in the areas of humanitarian assistance (HA) and disaster relief (DR) and/or peacekeeping operations (PKO). Collectively, they identify that mid-range theories have great explanatory power in exploring and researching this region.