500.A15A5/7

The Ambassador in Japan (Grew) to the Secretary of State

No. 520

Sir: Japanese naval leaders find themselves at present in a serious quandary. They have, since the ratification of the London Treaty2 [Page 250] and especially in the past year or more, insisted that Japan must demand parity, or at least a great increase in relative tonnage, at the next Naval Conference in 1935. They have built up a feeling among the people of resentment and contempt for anything connected with the London Treaty. Premier Hamaguchi and Premier Inukai were assassinated, and other statesmen live in fear of their lives, in consequence of the bitter feeling stirred up against protagonists of the London Treaty. Admirals Takarabe, Yamanashi and Taniguchi have been retired in consequence, it is generally believed, of their support of this Treaty. According to the press, Admiral Taniguchi’s recent retirement put an end to the high naval influence standing for the maintenance of the present treaty status. His retirement took place during the conduct of the “May 15th trials”, which have taken on the character of the Soviet propaganda trials and have stirred up great patriotic ardor against the London Treaty.

The result of these efforts by military leaders has been the creation of an intense antipathy for the arms limitation treaties and a universal demand for revision of the present naval ratios in favor of Japan. This feeling was useful to the Navy leaders until lately, when American naval construction has definitely commenced. The Navy now has the unenviable task of deciding whether to abrogate the treaties next year and start a hopeless competition with far wealthier nations for naval supremacy, or else to accept a continuance of the present ratios and to face an outraged public. Until recently, as the Japanese Navy approached the American Navy in effective tonnage, many leaders had high hopes of achieving parity or near parity with America. A short time ago Vice Admiral Takahashi, Vice Chief of the Naval General Staff, frankly said to the Assistant Naval Attaché of this Embassy: “We are going to the Conference in 1935 with a demand for parity. If our demand is rejected, we shall return home.”

This hope is now vanishing, as America begins to build toward the Treaty limits. By 1936 they realize that the situation will be comparable to that in 1927.

It is obvious from the flood of comment* which has followed announcement of the American building plans that the Japanese navy leaders are bitterly disappointed. They expected to have everything their own way at the conference in 1935 with their own navy built to the limit and the American navy hardly 75% effective. Their calculations have been completely upset by this new and unexpected development in the United States.

. . . . . . . . . . . . . .

[Page 251]

At present the Army and Navy are concentrating their efforts on obtaining funds for completion of their armament programs. The Navy program was discussed in brief in the Embassy’s previous despatch on reaction to the American building program. The American program is being used as justification for increased demands, and the impression is given out that the second naval replenishment program has been launched only because of the need of keeping pace with America. The fact is, of course, that the second replenishment program was announced in almost the present form as early as January of this year, several months before the American program was conceived. Moreover, the Japanese press invariably remarks that the American program will bring American naval strength up to Treaty limits, whereas actually it is understood to fall short of the objective by about 175,000 tons. But anything is used these days as an excuse for increased armaments for the Japanese Army and Navy.

There is hereto appended a translation appearing in the Japan Times of an interesting statement by the Minister of War, General Araki, in regard to national defence and the necessity of preparation for the approaching crisis in 1935 and 1936.3 There is also appended hereto an account of an interview given by the Navy Minister to the Tokyo correspondent of the United Press, which may be of interest in connection with naval affairs.

Respectfully yours,

Joseph C. Grew
[Enclosure]

Interview Given by the Japanese Minister of Marine (Osumi) to the Correspondent of the United Press in Tokyo

1. Q. Is Japan satisfied with the existing naval agreements? Will she request a larger ratio when the agreements come on for revision in 1936?

A. In the treatment of armament limitation problem the security and the limitation of fighting power are invariably bound together. From this fact it would be apparent that the position of naval armament is always closely dependent on international surroundings. If that is the case, there is no reason why a nation should remain forever content with a treaty which it had once signed. Only out of regard for the welfare of humanity, we signed the London Naval Treaty, but we did not do it unconditionally. As regards the Washington Agreement, it was signed twelve years ago and in our opinion is no longer adequate to guarantee the security of this empire as the [Page 252] international situation has thoroughly altered in that period of time. Furthermore from the standpoint of true armament limitation it is doubtful if the present ruling is really most rational and economical. At any rate we are not satisfied with the present arrangement, and we will demand the change of ratios at the next conference.

2. Q. Have the existing naval agreements served a useful purpose from the viewpoint of Japan? Does the Japanese Navy favor making new agreements cover additional categories of ships including submarines?

A. From the standpoints of all nations participatory to it, I will not deny that the existing treaties have served some useful purpose. For example:

(a)
They have to some extent effectually checked the competition in armament building, as far as the capital ships were concerned.
(b)
They have ushered in a building holiday as regards the capital ships and to that extent lightened the burden on the tax-payers.
(c)
Through the limitation of the types and guns they have precluded the chance of new ships becoming suddenly incapacitated as the result of a new invention in fighting machineries, and thus prolonged the life of fighting vessels consequently enabling the participants to economize expenditures.

I think these are the benefits common to all nations.

3. Q. Does the Minister apprehend a so-called “naval construction race” between Japan and the United States?

A. As far as the present situation is concerned, Japan and the United States are building only within treaty limits. Hence in my idea the term “naval race” is a sheer misnomer to describe the building position between these two countries.

4. Q. Why do Japanese naval publicists refer to the Mandate Islands in the South Seas as Japan’s naval lifeline? Of what value are these islands from a viewpoint of defence?

A. The South Sea Islands are separated from the southernmost islands of Japan by a narrow strip of water. Parts of Japan are situated within the cruising radius of a heavy bombing plane from the South Sea Islands, which possess therefore a great strategical value for the defence of the empire. If they should fall in the hands of a hostile power in war time, it will constitute a direct menace to the safety of our defence. This is why we call it the life-line of our sea defence. Some preach the idea that Japan is going to utilize these islands for an attack on the Pacific coast of the United States and the Hawaiian Islands. But just a look at the map will convince the public of the fallacy of such a doctrine. Can these islands be used as a base of attack on Hawaii which are lying as much as 2,000 miles away beyond the ocean, and this with a navy of lesser strength? [Page 253] The sheer impossibility of such idea will be apparent to anybody who knows something about naval warfare.

5. Q. Does the Minister believe the purchase of a 45 percent interest in the China Aviation Corporation by American interests is a matter of interest to the Japanese Navy? Does Japan consider American participation in Chinese aviation development as connected with China’s defence plans?

A. I am in no position to answer the question 5 except that we have as yet no reliable information in this respect, and that between the civil and the military aviation there is no hard and fast line of distinction, and this circumstance gave rise to embarrassing complication at Geneva whenever the problem was brought up for discussion.

6. Q. What does the Minister consider to be the mission or objectives of the United States and Japanese navies in contrast? Should there be, or is there, any clash in these objectives?

A. Secretary of the Navy, Swanson recently stated that the United States means to hold a navy strong enough to defend the country and its oversea dominions, and to this end will build, maintain and operate the first-in-the-world navy following the provision of existing treaties. If such is the case it can by no means clash with the mission of the Japanese navy which consists in the maintenance of the peace in the Far East and the defence of the empire’s position in the Far East. To the Japanese Navy the idea of crossing the Pacific Ocean in order to attack our neighbours is quite alien. Its mission is strictly defensive and legitimate.

7. Q. Does the Minister see any possibility of Japanese-American War?

A. I am positive in the belief that unless Japan’s national existence is menaced to the extent that the use of force is the only way to defend it, the world will never find Japan involved in a war with other countries.

  1. London Naval Treaty, signed at London, April 22, 1930, Department of State Treaty Series No. 830.
  2. Embassy’s despatch No. 480 of July 26, 1933. [Footnote in the original; despatch under reference not printed.]
  3. Japan Times, September 14, 1933; not reprinted.