China’s maritime expansion poses a new ‘security threat’ to Japan. Also, Japan views wooden boats from North Korea spotted through the East Sea(the Japanese name: the Sea of Japan) as a grave threat to its maritime security. Therefore, Japan’s Coast Guard(JCG) is emerging as an important institution in response to new threats of maritime security by conducting ‘the Dual-Layer Security System’ both in the East Sea and in the East China Sea. In the past, the abe administration adopted the Three Principles on the Rule of Law at Sea to address those threats while strengthening of the Maritime Security System.
The JCG’s enhanced role has features as follows. First, it assumes not only conventional maritime patrol but also a variety of military roles to cover an area of national security. Second, it responsible for securing national defense seeks to improve cooperation with both the Japan Maritime Self-Defense Force(JMSF) and maritime security-related government bodies. Third, it strives to improve international cooperation among maritime nations in the context of Indo-Pacific vision.