The East China Sea continental shelf has a complex structure that combines a variety of elements. Although the bio-resources it contains are a matter of great interest to surrounding countries, it is not possible to understand oceans within artificially drawn boundaries. By understanding oceans as a single system, we will see how we should relate to them. My vision is that a scientific understanding of the oceans will change the international community.
Selected Papers No.15(p.4)

Along with tracing the changes in ocean swimming practices in historical times, this article examines current conditions. From the traditional practice of "umimizuyuami" to the modern "kaisuiyoku", I will discuss the added-value to be found in sea bathing.

The National Defense Program Outline revision released at the end of last year included a policy to strengthen the defense posture in the Ryukyu Islands region, but discussion on concrete aspects of operational systems is just now beginning. As the defining characteristic of Ryukyu defense is its archipelagic nature, it is necessary to create a permanent integrated deployment unit from three existing JSDF units, and deploy it permanently to the Ryukyu region in order to build the autonomous mobile defense capability called for in the National Defense Program Outline.