Sino-Japanese relations have been deteriorating since 2010. What started as a
dust-up over a Chinese fisherman
arrested for fishing in Japanese waters has escalated into a series of
unpleasant incidents between the two countries, mostly in and around the
uninhabited, and largely unappealing Senkaku Islands (Diaoyu Islands in
China.)
For now, incidents have largely been restricted to demonstrations by
the coast guards of both sides and military aircraft encounters. Yet
with each year, relations between China and Japan have steadily
deteriorated. Unchecked, someday what may seem like routine
unpleasantness could spiral into military action. Listed below for your
consideration are five Japanese weapons of war that Beijing should think
carefully about if the unthinkable ever occurred:
Soryu-class Diesel Electric Submarines
Japan’s
Soryu-class submarines are some of the most advanced
non-nuclear attack submarines in the world. Displacing 4,100 tons
submerged, the subs can make 13 knots on the surface and up to 20 knots
submerged. Four
Stirling air independent propulsion systems allow the
Soryu class to remain underwater far longer than most diesel electric submarines.
The
Soryu class is armed with six bow-mounted torpedo tubes, with a total of 20 Type 89 high-speed homing torpedoes and American-made
Sub-Harpoon missiles.
Japan’s submarines could also be the delivery vehicles for cruise
missiles, should the concept of preemptive strikes, currently being
debated in Japanese politics, become a reality.
There are currently eight
Soryu-class submarines, with more
under construction. In response to increased tensions with China and a
growing People’s Liberation Army Navy submarine fleet, in 2010 Japan
decided to increase its own submarine force from 16 to 22.
Japan’s postwar submarine doctrine concentrates submarines at a
number of key invasion routes to Japan: the Tsugaru Strait, Tsushima
Strait, Kanmon Strait, and the Soya Strait. This concentration is a Cold
War holdover, from when Japan expected that Soviet Union might invade
during wartime. A more China-centric deployment plan, especially with
the Senkakus and Ryukyu islands in mind, could see more forward
deployments into the East China Sea and Sea of Japan.
Japan’s submarine fleet is particularly worrisome to China because of
Beijing’s traditional weakness in anti-submarine warfare (ASW). China
has not practiced ASW in wartime and has been institutionally deficient
in both skills and assets. Japan, on the other hand, has operated
submarines for many decades. Japanese submarine crews are reportedly
well trained, on par with their American counterparts.