Introduction -- Post-Cold War intrusions into Japanese waters -- The JMSDF's ocean surveillance architecture -- The Japanese ground self-defense force (JGSDF) -- The organization of the JMSDF: the high command, fleet bases and regional districts -- Japanese undersea surveillance systems, 1920-45 -- Technical developments since 1945 -- US SOSUS stations -- JMSDF ELINT/undersea surveillance stations -- Airborne ocean surveillance -- JMSDF SIGINT collection and ocean surveillance ships -- The US Ocean Surveillance Information System (OSIS) -- The Maritime Safety Agency (MSA)/Japan Coast Guard (JCG) -- Assessment of Japan's ocean surveillance capabilities.
Summary
Japan is quintessentially by geography a maritime country. Maritime surveillance capabilities - underwater, shore-based and airborne - are critical to its national defence posture. This book describes and assesses these capabilities, with particular respect to the underwater segment, about which there is little strategic analysis in publicly available literature.
