Navy of the Rising Sun
Flag of the Imperial Japanese Empire

Introduction
    The history of the Japanese Navy, in particular post Meiji restoration to the eve of WW2, is a very long, complex, and in many ways intriguing story. Unfortunately there is just not enough time to address all issues regarding the development of the Japanese Navy. Instead, this website will give solid information about why the Japanese emphasized naval strength, how they went about building up a modern navy, and their strategic plans for its use including specific naval operations.

The Need For a Navy

    With the expansion of western empires into the orient, many nations faced the challenge of dealing with them and Japan, unlike its neighbors, determined that industrialization and imperialistic goals suited them. Part of this is the need for a modern navy. The need for naval strength has its roots in the Meiji restoration. The revolution not only tried to modernize Japan industrially and socially, but militarily. The development of infrastructure, industry, and growth of cities required huge amounts of natural resources that the island of Japan just didn’t have, it had to look outward. This need for land and raw material set the Japanese mind on the surrounding lands of East Asia.    
 
    Beginning with Taiwan, Korea, Manchuria, and China, the Japanese Military grew and so did the public view of the need for imperialism. And with Japan being an island, it’s quite obvious the only road to becoming an empire lay with a strong navy. However, early in the 1900’s, after war with China over influence in Korea, the Japanese people viewed the navy as a tool for defense. In fact, one naval officer named Sato Tetsutaro came to realize “the advantage of an ocean oriented (offensive) defense over a static island offense” (Evans 137). His study of the world power at the time, also an island nation, the United Kingdom led him to conclude that a navy was the key to imperialism, expansion, power, and defense. To defend herself from western influence, Japan needed a strong world empire fed by a strong economy that was fueled by resources attained through an empire. Another need driving the development of a navy was the needs of the navy itself. With the switch from coal to oil in the army and navy, Japan needed a solution to its dependence on foreign oil, and this would come from the abundant lands of Southeast Asia. In fact, the south was “so vital to the navy… because operations there must necessarily be maritime and the navy depends on oil” (Beasley 224).
   
    The core of imperialism in Japan was domestic; the alliance of the ruling classes to keep power and international; the need to survive in the harsh capitalistic and imperialist world as suggested by historian Shigeru Yoshido (35). Lastly, the desire to help the other nations in Asia in a brotherly like way against the arm of western imperialism led to the need for a navy. With a strong navy, Japan could protect its neighbors as many Japanese believed their duty was. A navy would allow Japan to provide regional security and prosperity, but at the heart would still protect the economic interests and development of export markets for Japan. As events unfolded from the late 1800’s to the 1930’s and 40’s the Japanese had realized that they needed a navy to survive, that their dependence on other nations made them weak and a navy could provide strength.

Industrialization and expansion of infrastructure like
Japanese Railways

this railway, required resources from abroad

Construction of the Imperial Japanese Navy
    Now that Japan had realized its need for a navy, and the value in naval superiority, it needed to find a way to construct the ships necessary for a strong force. At the same time China was squandering funds meant for a modern navy, the Japanese were using the wealth and facilities that had sprung up with the Meiji restoration and birth of the zaibatsu to create a modern ironclad navy. With easy success against the Chinese in 1895 the next clear threat to influence in Korea and Manchuria was Russia. Despite having fewer ships when it fought Russia in 1904, victory came quickly and by 1905 Japan had humiliated a western naval power. The triumph over Russia, as Evans puts it “cemented naval tradition, cast a spell on naval leaders” (94) and Japan attained world power status overnight. The period leading up to and around WW1 signified expansion for the Japanese Navy into a diversified force. With the development of new submersible technology, advances in aviation, and the introduction of the Dreadnaught class battleships around the world, the Japanese Navy expanded into uncharted waters it would spend the next 20 years exploring.
       
    With the world entering into financial ruins and the once powerful Japanese industries taking heavy losses, it would seem unlikely for large shipbuilding projects to be started. However, fueled by the defeat Japan felt it suffered at the Washington naval conference where it was limited to 3 capitol ships for every 5 or the US and the UK, the Japanese government funded more naval development that helped get the country out of depression. In the presence of cheap labor, a large labor force looking for work, and the infrastructure created in the previous decades, the Japanese economy boomed as it produced more and more ships, (Evans 199). Initially attention was paid to submarines, because of their effectiveness against the Russians. The submersible was seen as an excellent tool for attrition against a larger naval force. However, because of the restrictions from the London naval conference, tonnage was limited on capitol ships and the Japanese view of the importance of naval aviation changed (Evans 249). The Japanese made several attempts from the 20’s right up to 1941 to make the perfect aircraft carrier. This was absolutely necessary as aircraft technology boomed. Japan also began converting merchant ships and various others for military use. But as the 30’s progressed and more radical militarists came into power, Japan in 1937 began ignoring the tonnage limits set in previous decades and began the “Circle 3 plan which called for two super-battleships the Yamato and Musashi, 2 new carriers and 65 other warships.” (Evans 357). Also included were the retrofitting of aircraft carriers, cruisers, destroyers and support ships that included upgrading the bore of guns onboard, and adding almost 2000 planes for the navy.

    As the 40’s neared, the Japanese war machine kept producing ships at an amazing rate. The Japanese now focused construction on surpassing American naval air power and attempting to maintain a 70% ratio of ships to the Americans.  Before 1941, the Japanese had amassed a navy worth of praise full of massive battleships, heavily armored support craft, cruisers, destroyers, submarines, and a growing carrier group and aircraft. Japan mobilized its industry and met the need for a modern navy realized decades earlier.

The aircraft carrier Akagi after being commisioned.

Aircraft Carrier Akagi After Commision

The Battleship Yamato

 Long Term Regional Strategy and Implementations
    The Japanese Navy through its development as a world fighting power would be useless without a strategy. As seen in the purpose for its construction, the security of the nation was first. The first priority of the navy was to establish hold over the provinces in China and Korea and transport goods and materials between the two. Additionally, the navy needed to expand to resource rich lands in Southeast Asia. The navy would need to expand its hold to these islands to expand strategic ports, gain access to oil to run its fleet, and shipping to transport goods like rubber and tin. The economic needs for a strong Japan led to this strategy to essentially conquer a huge part of Asia. The plan was later referred to as the Greater East Asia Co-Prosperity Sphere and would protect the natives of other countries from oppressive westerners. Naval man Ishiwara Kanji noted that the protection of Asia and its values would “require a series of wars first against Russia, then against Britain, finally against the United States” (Beasley 182)

    Japanese strategy was to secure its holdings, expand to other Asian countries to build strength in preparation for a war it saw coming against the western nations. In fact, Japan had foreseen the United States as an enemy since the early 1900’s and developed naval strategy around fighting a nation like the US. Since the US and other western nations were a threat, this expansion into other Parts of Asia was seen as brotherly and a help to those nations while providing the power for Japan to preserve itself and its interests.
   
    Original strategy was focused on decisive victory with big guns, use of attrition against numerically superior forces, quality over quantity, and the use of nighttime and torpedo attacks (Evans 94). As time passed and America became the clear enemy and with advances in aircraft technology, strategy changed. Japan now had a plan to fight the United States in three steps. The first was to “seek and destroy weak American forces in the south pacific,” next would be attrition against the main US battle fleet as it made its way from the west coast to Japan, and last to have a decisive victory against the remnants of the US fleet as they neared Japan. (Evans 464-465). Two major problems with this strategy was that the Japanese never tested their combined fleet’s capabilities before the war and the US Navy moved its pacific fleet to Hawaii. Overall, Japanese strategy was to expand to its neighbors in Asia, build up its fleet and resources, and prepare for a war with the western world.


 
Map of Colonization in the Pacific in 1939  Colonial Possesions in Asia, 1939

    Tactics for implementation of overall strategy were in part discussed in the last paragraph. Now to discuss the specific types of craft planned on being used, a discussion of Admiral Yamamato in brief and a final note. The Japanese learned from the west and from battle in WW1 that the battleship was king of the sea. The naval leaders therefore valued big battleships as a key to defeat of any enemy. TheAdmiral Yamamato Isoroku Japanese felt that the super-battleship would be a final component to the navy and overemphasized battleships in general because they were restricted by treaties (Evans 293) . Additionally, the use of submarines was viewed as crucial to help the attrition of the predicted US Navy. With stealth and surprise, they would eat away at enemy capitol ships. Also, support craft like destroyers and cruisers were supposed to serve a protective role of carriers and take out weaker forces on their own. The only problem here was the overwhelming reliance on large slow battleships. Admiral Yamamoto (seen right), was one of three key naval officers in the pre-war and war period believed in the superiority of naval air power and saw the end of the battleship (Evans 461). Yamamoto had graduated from the naval institute and served as captain of several ships before commanding the naval air wing before planning the attack on Pearl Harbor. After his death he was elevated to the position Admiral of the Fleet (Evans 537). He was a moderate voice in a time or crazed militarism and stressed airpower, which the coming war would prove to be far more crucial than slow lumbering battleships.
     
    Overall, the Japanese Navy expected to implement its naval strategy through operations that involved several types of ships and their roles throughout the pacific. And through all this, several admirals like Yamamoto felt that the naval power of Japan was being constructed for war, not to prevent it. On a final note, the development of a modern navy in Japan had a useful purpose, was achieved through the industrial powers of the day, was meant for good and prosperity, but in the end the execution of operations and a few crazed military men corrupted this great empire.



Sources:

Image Credits:
        Imperial Japanese Flag: from clipart directory for the university of south florida,
                                             
http://etc.usf.edu/clipart/2000/2071/jp-flag_2_lg.gif
        Image 2: railway technical institute of japan, http://www.rtri.or.jp/japanrail/GIF/tsubame.gif
        Image 3:  polish site of history of warships, www.warship.get.net.pl
        Image 4: wordiq.com and property of  us navy, http://www.wordiq.com/knowledge/images/thumb/d/d4/721px-Yamatotrials.jpg
        Image 5: United States Military Academy, WW2 in the Pacifiic, history section. www.usma.edu/history
        Image 6: Website for the Hoover Digest,1998. www.hooverdigest.org


Author: Sean Ducko, 2005

       



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