An amphibious capability would offer Japanese leaders new flexibility, especially in the increasingly volatile offshore islands zone—given improvements in equipment, doctrine, and especially interservice integration.
"An Amphibious Capability in Japan’s Self-Defense Force: Operationalizing Dynamic Defense,"
Naval War College Review: Vol. 66
, Article 8.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol66/iss4/8