90 PEARL HARBOR ATTACK IN A PARTICULAR FIELD ON SATURDAYS AND SUNDAYS OR ON NATIONAL HOLIDAYS OF THE COUNTRY CONCERNED, THEY SHOULD TAKE STEPS ON SUCH DAYS TO SEE THAT PROPER WATCHES AND PRECAUTIONS ARE IN EFFECT. In a letter of April 3, 1941, [62] Admiral Stark expressed his observations on the international situation to the commanders in chief, Pacific Fleet, Asiatic Fleet, and Atlantic Fleet, including a discussion of the preparation of Navy Basic War Plan Rainbow No. 5. Admiral Stark stated that the basic idea of this plan contemplated that the United States would draw forces from the Pacific Fleet to reinforce the Atlantic Fleet; that the British, if necessary, would transfer naval forces to the Far East to attempt to hold the Japanese north of the Malay barrier; and that the United States Asiatic Fleet would be supported through offensive operations of the United States Pacific Fleet. He then discussed the dangers facing Britain and stated that the Japanese attitude would continue to have an extremely important bearing on the future of the war in the Atlantic. He observed that for some time Japan had been showing less inclination to attack the British, Dutch, and the United States in the Far East. Admiral Stark instructed the addressees to watch this situation closely. He expressed the feeling that beyond question the presence of the Pacific Fleet in Hawaii had a stabilizing effect in the Far East but that the question was when and not whether we would enter the war. Admiral Stark's personal view was that we might be in the war against Germany and Italy within about 2 months, but there was a reasonable possibility that Japan might remain out altogether. However, he added, we could not act on that possibility. In the meantime, he suggested that as much time as available be devoted to training. Under date of April 18, 1941, instructions were given various naval observers to include the commander in chief of the Pacific Fleet as an information addressee in all dispatch reports and to furnish one copy of all intelligence reports directly to him. [63] In a memorandum dated May 26 to the Chief of Naval Operations the commander in chief of the Pacific Fleet suggested that he be guided by broad policy and objectives rather than by categorical instructions; and that it be made a cardinal principle that he be immediately informed of all important developments as soon as they occur and by the quickest secure means possible. [64] [62] Committee exhibit No. 106. [63] Committee exhibit No. 37, p. 3. [64] Admiral Kimmel said: "The Commander-in-Chief, Pacific Fleet, is in a very difficult position. He is far removed from the seat of government, in a complex and rapidly changing situation. He is, as a rule, not informed as to the policy, or change of policy, reflected in current events and naval movements and, as a result, is unable to evaluate the possible effect upon his own situation. He is not even sure of what force will be available to him and has little voice in matters radically affecting his ability to carry out his assigned tasks. The lack of information is disturbing and tends to create uncertainty, a condition which directly contravenes that singleness of purpose and confidence is one's own course of action so necessary to the conduct of military operations. "It is realized that on occasion, the rapid developments in the international picture, both diplomatic and military, and, perhaps, even the lack of knowledge of the military authorities themselves, may militate against the furnishing of timely information, but certainly the present situation is susceptible to marked improvement. Full and authoritative knowledge of current policies and objectives, even though necessarily late at times, would enable the Commander-in-Chief, Pacific Fleet, to modify adapt or even reorient his possible courses of action to conform to current concepts. This is particularly applicable to the current Pacific situation, where the necessities for intensive training of a partially trained Fleet must be carefully balanced against the desirability of interruption of this training by strategic dispositions, or otherwise, to meet impending eventualities. Moreover, due to this same factor of distance and time, the Department itself is not too well informed as to the local situation, particularly with regard to the status of current outlying island development, *thus making it even more necessary that the Commander-in-Chief, Pacific Fleet, be guided by broad policy and objectives rather than by categorical instructions*. "*It is suggested that it be made a cardinal principle that the Commander-in-Chief, Pacific Fleet, be immediately informed of all important development as they occur and by the quickest secure means available*." See committee exhibit No. 106. PEARL HARBOR ATTACK 91 In June of 1941 Admiral Kimmel visited Washington at which time matters of naval policy were reviewed with him. [65] On July 3, 1941, Admiral Kimmel, among others, was advised "for action" by the Chief of Naval Operations, [66] that the unmistakable deduction from information obtained from numerous sources was that the Japanese Government had determined upon its future policy, supported by all principal Japanese political and military groups; that his policy probably involved war in the near future. It was pointed out that an advance by Japan against the British and Dutch could not be entirely ruled out but that the Chief of Naval Operations held to the opinion that Japanese activity in "the south" would be confined for the present to seizure and development of naval, army, and in bases in Indochina. The dispatch stated that the Japanese neutrality pact with Russia would be abrogated and the major military effort on the part of Japan against Russia would be toward the latter's maritime provinces probably toward the end of July, although the attack might be deferred until after the collapse of European Russia. It was pointed out that all Japanese vessels in United States Atlantic Forts had been ordered to be west of the Panama Canal by August 1, that the movement of Japanese "flag shipping" from Japan had been suspended and additional merchant vessels were being requisitioned. Vith an admonition to secrecy, instructions were issued to inform the principal army commanders and the commander in chief's own immediate subordinates. In another dispatch of July 3, [67] Admiral Kimmel was advised for action that definite information had been received indicating that between July 16 and 22 the Japanese Government had issued an order for 7 of the 11 Japanese vessels then in the North Atlantic and Caribbean areas to pass through the Panama Canal to the Pacific, and that under routine schedules three of the remaining ships were to move to the Pacific during the same period. It was suggested that in Japanese business communities strong rumors were current that Russia would be attacked by Japan on July 20, and that a definite move by the Japanese might be expected during the period July 20 to August 1, 1941. On July 7 the commander in chief of the Pacific Fleet was advised for information of the substance of three intercepted dispatches, including one of July 2 from Tokyo to Berlin, stating: [68] "JAPAN IS PREPARING FOR ALL POSSIBLE EVENTUALITIES REGARDING SOVIET IN ORDER (TO) JOIN FORCES WITH GERMANY IN ACTIVELY COMBATTING COMMUNIST (SIC) AND DESTROYING COMMUNIST SYSTEM IN EASTERN SIBERIA. AT SAME TIME JAPAN CANNOT AND WILL NOT RELAX EFFORTS IN THE SOUTH TO RESTRAIN BRITAIN AND THE UNITED STATES. NEW INDOCHINA BASES WILL INTENSIFY RESTRAINT AND BE VITAL CONTRIBUTION TO AXIS VICTORY." And another of July 2 from Berlin to Tokyo: [69] "OSHIMA DELIVERS ABOVE NOTE AND TELLS RIBBENTROP IN PART, "MATSUOKA WILL SOON SUBMIT A DECISION. IF YOU GERMANS HAD ONLY LET US KNOW YOU WERE GOING TO FIGHT [65] See Navy Court of Inquiry record page 113. [66] Committee exhibit No 37, p. 4. [67] Id., at p. 5. [68] Id., at p. 6. [69] Id. This dispatch and that indicated, note 68, supra, were based on the so-called Magic. For a discussion of Magic see Part IV, this report. 92 PEARL HARBOR ATTACK RUSSIA SO SOON WE MIGHT HAVE BEEN READY. WE WERE PLANNING TO SETTLE SOUTH SEAS QUESTIONS AND CHINA INCIDENT HENCE DECISION CANNOT BE REACHED IMMEDIATELY, BUT JAPAN WILL NOT SIT ON FENCE WHILE GERMANY FIGHTS." The Chief of Naval Operations in a dispatch of July 15, [70] sent Admiral Kimmel for information, supplied intelligence received to the effect that within "the next day or two," Japan would begin commercial negotiations with Vichy France at which time she would propose "in the name of mutual defense" Japan's taking over southern French Indochina naval and air bases; and that at the same time Japan would attempt to station army and navy air forces peacefully with French agreement, if possible. It was pointed out that if Vichy objected Japan had decided to use force; and that Japan did not intend to move farther south or interfere with colonial government. On the basis of the information received it was observed that the Japanese move was necessary to guarantee supplies from "Colony and Thailand" and to prevent "Syrian type British action"; and that while Tokyo wished to avoid friction with Britain and particularly the United States, if possible, the risk was regarded as necessary. In a dispatch sent Admiral Kimmel on July 17 for his information, he was advised of a six-point ultimatum sent by Tokyo to Vichy requiring an answer by July 20 71 The six points were specified as: (1) Japan to send necessary Army and Wavy air forces to southern French Indochina; (2) Vichy to turn over certain naval and air bases; (3) Japanese expeditionary force to have right to maneuver and move about freely; (4) Vichy to withdraw forces at landing points to avoid possible clashes; (5) Vichy to authorize French Indochina military to arrange details with Japanese either before or after landing; (6) Colony to pay Japan 23,000,000 piastres annually to meet cost of occupation. This same dispatch advised of intelligence received on July 14 that the Japanese Army was planning its advance on or about July 20 and, of intelligence received on July 14, that Japan intended to carry out its plans by force if opposed or if Britain or the United States interfered. On July 19 Admiral Kimmel was advised for his information concerning the substance of an intercepted Japanese dispatch from Canton to Tokyo, as follows: [72] "THE RECENT GENERAL MOBILIZATION ORDER EXPRESSES JAPAN'S IRREVOCABLE RESOLUTION TO END ANGLO-AMERICAN ASSISTANCE IN THWARTING JAPAN'S NATURAL EXPANSION AND HER INDOMITABLE INTENTION TO CARRY THIS OUT WITH THE BACKING OF THE AXIS IF POSSIBLE BUT ALONE IF NECESSARY. FORMALITIES SUCH AS DINING THE EXPEDITIONARY FORGES AND SAYING FAREWELL TO THEM WERE DISPENSED WITH TO AVOID ALARM AND BECAUSE WE WISHED TO FACE THIS NEW WAR WITH A CALM AND COOL ATTITUDE. * * * IMMEDIATE OBJECT WILL BE TO ATTEMPT PEACEFUL FRENCH INDOCHINA OCCUPATION BUT WILL CRUSH RESISTANCE IF OFFERED AND [70] Committee exhibit No. 37, p. 8. This dispatch was based on Magic. [71] Id., at page 9. This dispatch was also based on Magic. [72] Id., at p. 10. This dispatch was likewise based on Magic, see committee exhibit No. 1, p. 2. PEARL HARBOR ATTACK 93 SET UP MARTIAL LAW. SECONDLY OUR PURPOSE IS TO LAUNCH THEREFROM A RAPID ATTACK WHEN THE INTERNATIONAL SITUATION IS SUITABLE. AFTER OCCUPATION NEXT ON OUR SCHEDULE IS SENDING ULTIMATUM TO NETHERLANDS INDIES. IN THE SEIZING OF SINGAPORE THE NAVY WILL PLAY THE PRINCIPAL PART. ARMY WILL NEED ONLY ONE DIVISION TO SEIZE SINGAPORE AND TWO DIVISIONS TO SEIZE NETHERLANDS INDIES WITH AIR FORCES BASED ON CANTON, SPRATLEY, PALAU, SINGORA IN THAILAND, PORTUGUESE TIMOR AND INDOCHINA AND WITH SUBMARINE FLEET IN MANDATES, HAINAN, AND INDOCHINA WE KILL CRUSH BRITISH AMERICAN MILITARY POWER AND ABILITY TO ASSIST IN SCHEMES AGAINST US." On July 19 Admiral Kimmel was advised of an intercepted dispatch from Tokyo informing that although the Japanese Cabinet had changed there would be no departure from the principle that the Tripartite Pact formed the keystone of Japan's national policy and that the new Cabinet would also pursue the policy of the former cabinet in all other matters. [73] In another dispatch, supplying information concerning an intercepted Tokyo message to Vichy, Admiral Kimmel was advised on July 20, that the Japanese Army had made all preparations and had decided to advance regardless of whether Vichy France accepted her demands. [74] Admiral Stark wrote to Admiral Hart on July 24, 1941, [75] sending a copy of the letter to Admiral Kimmel, concerning among other things, a 2-hour conversation between Admiral Stark and Ambassador Nomura. Admiral Stark expressed the thought that Nomura was sincere in his desire that the United States and Japan avoid open rupture; stated they had a very plain talk; and observed that he, Admiral Stark, liked Nomura. He advised that Nomura discussed at length Japan's need for the rice and minerals of Indochina. Admiral Stark said his guess was that with the establishment of bases in Indochina, Japan would stop for the time being, consolidate her positions and await world reaction; that no doubt the Japanese would use their Indochina bases from which to take early action against the Burma Road. He said that, of course, there was the possibility that Japan would strike at Borneo, but that he doubted his in the near future unless we were to embargo oil shipments to them. Admiral Stark also said that he talked with the President and hoped no open rupture would come but that conditions were not getting better. On July 25, 1941, Admiral Kimmel was advised that beginning July 26 the United States would impose economic sanctions against Japan and that it was expected these sanctions would embargo all trade between Japan and the United States, subject to modification through a licensing system for certain material. [76] It was further pointed out that funds in the United States would be frozen except as they may be moved under licensing. In estimating the situation it was observed: "*Do not anticipate immediate hostile reaction by Japan through the use of military means but you are furnished this information in order that you may take appropriate precautionary measures against hostile eventualities.*" [73] Committee exhibit No. 37, p. 11. [74] Id., at p. 12. [75] Committee exhibit No. 106. [76] Committee exhibit No. 37, p. 14. 94 PEARL HARBOR ATTACK In a letter to Admiral Kimmel dated July 31, 1941, [77] Admiral Stark discussed the over-all international situation, and stated that "after the Russian situation broke" he proposed to the President that they should start escorting immediately and that we should consider, along with the British, a joint protectorate over the Dutch East Indies. He stated he thought it fairly safe to say that the opinion was generally held that Japan would not go into the N. E. I. [78] but that Admiral Turner thought Japan would go into the maritime provinces in August. He commented that Turner might be right and usually was. Admiral Stark said his thought had been that while Japan would ultimately go into Siberia she would delay doing so until she had the Indochina-Thailand situation more or less to her liking and until there was some clarification of the Russian-German clash. He also said that we would give aid to Russia. A postscript to this letter stated, among other things, that . "*obviously, the situation in the Far East continues to deteriorate; this is one thing that is factual*." Admiral Kimmel was advised on August 14 that the Japanese were rapidly completing withdrawal from world shipping routes, that scheduled sailings were canceled, and that the majority of ships in other than China and Japan Sea areas were homeward bound. [79] The following dispatch of August 28 was sent to Admiral Kimmel, among others, for action: [80] "CERTAIN OPERATIONS PRESCRIBED FOR THE ATLANTIC BY WPL 51 ARE HEREBY EXTENDED TO AREAS OF THE PACIFIC OCEAN AS DESCRIBED HEREIN IN VIEW OF THE DESTRUCTION BY RAIDERS OF MERCHANT VESSELS IN THE PACIFIC OCEAN WITHIN THE WESTERN HEMISPHERE NEUTRALITY ZONE AS DEFINED IN THE DECLARATION OF PANAMA OF OCTOBER 3, 1939. FORMAL CHANGES IN WPL 51 WILL BE ISSUED, BUT MEANWHILE ACTION ADDRESSES WILL EXECUTE IMMEDIATELY THE FOLLOWING INSTRUCTIONS. CINCPAC CONSTITUTE THE SOUTHEAST PACIFIC FORCE CONSISTING OF TWO 7,500-TON LIGHT CRUISERS AND DISPATCH IT TO BALBOA. FOR TASK PURPOSES THIS FORCE WILL OPERATE DIRECTLY UNDER CNO [81] AFTER ENTERING THE SOUTHEAST PACIFIC SUB AREA AS DEFINED IN WPL 46 PAR. 3222 EXCEPT WESTERN LIMIT IS LONGITUDE 100 WEST. WITHIN THE PACIFIC SECTOR OF THE PANAMA NAVAL COASTAL FRONTIER AND WITHIN THE SOUTHEAST PACIFIC SUB AREA THE COMMANDER PANAMA NAVAL COASTAL FRONTIER AND COMMANDER SOUTHEAST PACIFIC FORCE WILL IN COOPERATION AND ACTING UNDER THE STRATEGIC DIRECTION OF THE CHIEF OF NAVAL OPERATIONS EXECUTE THE FOLLOWING TASK: DESTROY SURFACE RAIDERS WHICH ATTACK OR THREATEN UNITED STATES FLAG SHIPPING. INTERPRET AN APPROACH OF SURFACE RAIDERS WITHIN THE PACIFIC SECTOR OF THE PANAMA NAVAL COASTAL FRONTIER OR THE PACIFIC SOUTHEAST SUB AREA AS A THREAT TO UNITED STATES FLAG SHIPPING. FOR THE PRESENT THE FORCES CONCERNED WILL BASE BALBOA, BUT CNO WILL ENDEAVOR TO MAKE ARRANGEMENTS FOR BASING ON SOUTH AMERICAN PORTS AS [77] Committee exhibit No. 106. [78] Netherlands East Indies. [79] Committee exhibit No. 37, p. 15. [80] Id., at p. 16. [81] Chief of Naval Operations. PEARL HARBOR ATTACK 99 MAY BE REQUIRED. ACTION ADEES [82] AND COMMANDER SOUTHEAST PACIFIC FORCE INFORM CNO WHEN THESE INSTRUCTIONs HAVE BEEN PLACED IN EFFECT." In a letter to Admiral Kimmel, also on August 28, 1941. [83] Admiral Stark discussed, among other things, the status of the Japanese situation and observed that the Japanese seemed to have arrived at another one of their indecisive periods; that some very strong messages had been sent to them but just what they were going to do he did not know. He said he had told one of Japan's statesmen that another move, such as the one into Thailand, would go a long way toward destroying before the American public what good will still remained. Admiral Stark said he had not given up hope of continuing peace in the Pacific, but he wished the thread by which it continued to hang were not so slender. Admiral Kimmel raised specific questions in a letter to Admiral Stark of September 12, 1941 [84] such as whether he should not issue shooting orders to the escorts for ships proceeding to the Far East. Admiral Kimmel also raised the question of what to do about submarine contacts off Pearl Harbor and vicinity. He said: "As you know, our present orders are to trail all contacts, but not to bomb unless they are in the defensive sea areas. Should we now bomb contacts, without waiting to be attacked?" Admiral Stark answered on September 23, 1941, [85] and stated, among other things, that at the time the President had issued shooting orders only for the Atlantic and Southeast Pacific submarine area; that the longer they could keep the situation in the Pacific in status quo, the better for all concerned. He said that no orders should be given to shoot, at that time, other than those set forth in article 723 of the Navy Regulations. [86] The letter also stated, in connection with the question of submarine contacts, that they had no definite information that Japanese submarines had ever operated in close vicinity to the Hawaiian Islands, Alaska, or our Pacific coast; that existing orders, i. e., not to bomb suspected submarines except in the defensive sea areas, were appropriate, and continued: "If conclusive, and I repeat conclusive, evidence is obtained that Japanese submarines are actually in or near United States territory, then a strong warning and a threat of hostile action against such submarines would appear to be our next step. Keep us informed." Going on, Admiral Stark said that he might be mistaken, but he did not believe that the major portion of the Japanese Fleet was likely to be sent to the Marshalls or the Caroline Islands under the circumstances that then seemed possible; and that in all probability the Pacific Fleet could operate successfully and effectively even though decidedly weaker than the entire Japanese Fleet, which certainly could be concentrated in one area only with the greatest difficulty. In this letter, Admiral Stark inquired: "* * * would it not be possible for your force to "carefully" get some pictures of the Mandated Islands?" In a postscript to this letter, Admiral Stark stated that Secretary Hull had informed him that the conversations with the Japanese had [82] Addressees. [83] Committee exhibit No. 106. [84] Id. [85] Id. [86] These regulations provide for the use of force in self- preservation, in the sound judgment of responsible officers, as a last resort. 96 PEARL HARBOR ATTACK practically reached an impasse. He said that, as he saw it, we could get nowhere toward a settlement and peace in the Far East until there as some agreement between Japan and China, which seemed to be remote. A second postscript to the letter, in making reference to a conversation between Admiral Stark and Nomura, said that Ambassador Nomura usually came in when he began to feel near the end of his rope, and that there was not much to spare at that end then. Admiral Stark observed that conversations without results could not last forever and that if the conversations fell through, which looked likely, the situation could only grow more tense. Admiral Stark said he had again talked to Secretary Hull and thought the Secretary would make one more try. He said that Secretary Hull kept him, Admiral Stark, pretty fully informed; and, if there was anything of moment, he would of course hasten to let Kimmel know. With this letter there was enclosed a copy of a memorandum from General Marshall to Admiral Stark setting forth what was being done to strengthen the Philippines. The memorandum indicated, among other things, that on September 30, 26 Flying Fortresses would leave San Francisco for Hawaii en route to the Philippines. The following dispatch of October 16, 1941, was sent to the commander in chief, Pacific Fleet, for action: [87] "THE RESIGNATION OF THE JAPANESE CABINET HAS CREATED A GRAVE SITUATION. IF A NEW CABINET IS FORMED IT WILL PROBABLY BE STRONGLY NATIONALISTIC AND ANTI-AMERICAN. IF THE KONOYE CABINET REMAINS THE EFFECT WILL BE THAT IT WILL OPERATE UNDER A NEW MANDATE WHICH WILL NOT INCLUDE RAPPROCHEMENT WITH THE U. S. IN EITHER CASE HOSTILITIES BETWEEN JAPAN AND RUSSIA ARE A STRONG POSSIBILITY. SINCE THE U. S. AND BRITAIN ARE HELD RESPONSIBLE BY JAPAN FOR HER PRESENT DESPERATE SITUATION THERE IS ALSO A POSSIBILITY THAT JAPAN MAY ATTACK THESE TWO POWERS. IN VIEW OF THESE POSSIBILITIES YOU WILL TAKE DUE PRECAUTIONS INCLUDING SUCH PREPARATORY DEPLOYMENTS AS WILL NOT DISCLOSE STRATEGIC INTENTION NOR CONSTITUTE PROVOCATIVE ACTIONS AGAINST JAPAN. SECOND AND THIRD ADEES INFORM APPROPRIATE ARMY AND NAVAL DISTRICT AUTHORITIES. ACKNOWLEDGE." Referring to the dispatch of October 16 concerning the resignation of the Japanese Cabinet, Admiral Stark stated in a letter of October 17 to Admiral Kimmel: [88] "Personally I do not believe the Japs are going to sail into us and the message I sent you merely stated the "possibility", in fact I tempered the message handed to me considerably. Perhaps I am wrong, but I hope not. In any ease after long pow-wows in the White House it was felt we should be on guard, at least until something indicates the trend." In a postscript to this letter Admiral Stark said: "Marshall just called up and was anxious that we make some sort of a reconnaissance so that he could feel assured that on arrival at Wake, a Japanese raider attack may not be in order on his bombers. I told him that we could not assure against any such contingency, but that I felt it extremely improbable and that while we keep track of Japanese ships so far as we can, a carefully planned raid [87] Committee exhibit No. 37, p. 18. [88] Committee exhibit No. 106. PEARL HARBOR ATTACK 97. on any of these Island carriers in the Pacific might be difficult to detect. However, we are on guard to the best of our ability, and my advice to him was not to worry. [89]" On October 17, 1941) Admiral Kimmel was advised for his information that, effective immediately, all trans-Pacific United States flag shipping to and from the Far East, India, and East India area was to be routed through the Torres Straits, keeping to the southward and well clear of the Japanese Mandates. [90] On the same day he was advised for action that- "BECAUSE OF THE GREAT IMPORTANCE OF CONTINUING TO REINFORCE THE PHILIPPINES WITH LONG-RANGE ARMY BOMBERS YOU ARE REQUESTED TO TAKE ALL PRACTICAL PRECAUTIONS OR THE SAFETY OF THE AIRFIELDS AT WAKE AND MIDWAY. [91]" Admiral Kimmel was advised, among other things, on October 23 at until further orders all Army and Navy "trans-Pacific troop transports, ammunition ships and such others with sufficiently important military cargo" would be escorted both ways between Honolulu ad Manila. [92] On November 4, 1941, Admiral Kimmel was informed that complete withdrawal from Western Hemisphere waters of Japanese merchant vessels appeared in progress. [93] A letter to Admiral Kimmel from Admiral Stark on November 7 commented, among other things: [94] "Things seem to be moving steadily towards a crisis in the Pacific. Just when it will break, no one can tell. The principle reaction I have to it all is what I have written you before; it continually gets "worser and worser!" A month may see, literally, most anything. Two irreconcilable policies cannot go on forever particularly if one party cannot live with the set-up. It doesn't look good." On November 14, Admiral Stark wrote Admiral Kimmel, stating among other things: [95] "The next few days hold much for us. Kurusu's arrival in Washington has been delayed. I am not hopeful that anything in the way of better understanding between the United States and Japan will come of his visit. I note this morning in the press dispatches a listing of a number of points by the Japan Times and [89] Transmitted as an enclosure to this letter was an estimate dated October 17 prepared by Admiral Schuirmann with respect to the change in the Japanese Cabinet, stating: "I believe we are inclined to overestimate the importance of changes in the Japanese Cabinet as indicative great changes in Japanese political thought or action. "The plain fact is that Japanese politics has been ultimately controlled for years by the military. Whether or not a policy of peace or a policy of further military adventuring is pursued is determined by the military based on their estimate as to whether the time is opportune and what they are able to do, not by what cabinet is in power or on diplomatic maneuvering, diplomatic notes or diplomatic treaties." After recounting that Konoye cabinets had time and again expressed disapproval of the acts committed the Japanese military but remedial action had not been taken, that Konoye himself had declared Japan's policy was to beat China to her knees; that while the Konoye cabinet may have restrained the *extremists* among the military it had not opposed Japan's program of expansion by force; that when opportunities arise during the "coming months" which seemed favorable to the military for further advance, they would be seized; and that the same "bill of goods," regarding the necessity of making some concession to the moderates" in order to enable them to cope with the "extremists" had been offered to the United States since the days when Mr. Stimson was Secretary of State and Debuchi Ambassador, Admiral Schuirmann concluded: "Present reports are that the new cabinet to be formed will be no better and no worse than the one which has just fallen. Japan may attack Russia, or may move southward, but *in the final analysis this will be determined by the military on the basis of opportunity, and what they can get away with, not by what cabinet is in power" (Committee exhibit No. 106). [90] Committee exhibit No. 37, p. 21. [91] Id., at p. 22. [92] Id., at p. 23. [93] Id., at p. 24. [94] Committee exhibit No. 106. [95] Id. As an enclosure to this letter, Admiral Stark forwarded a copy of a joint memorandum for the President which he and General Marshall had prepared dated November 5 and bearing caption "Estimate concerning Far Eastern Situation." This memorandum was prepared with respect to dispatches received indicating it to be Generalissimo Chiang Kai-shek's belief that a Japanese attack on Kunming was imminent and that military support from outside sources, particularly by the use of United States and British units, was the sole hope for defeat of this threat. The Chief of Staff and Chief of Naval Operations opposed dispatching American military assistance to meet this supposed threat. For a discussion of this memorandum, see Part IV, infra, this report. 98 PEARL HARBOR ATTACK Advertiser upon which concessions by the United States are necessary for the "solution of the Pacific Crisis". Complete capitulation by the United States on every point of difference between the Japanese and this country was indicated as a satisfactory solution. It will be impossible to reconcile such divergent points of view." On November 24, 1941, Admiral Kimmel received the following message marked for action: [96] "CHANCES OF FAVORABLE OUTCOME OF NEGOTIATIONS WITH JAPAN VERY DOUBTFUL. THIS SITUATION COUPLED WITH STATEMENTS OF JAPANESE GOVERNMENT AND MOVEMENTS THEIR NAVAL AND MILITARY FORCES INDICATE IN OUR OPINION THAT *A SURPRISE AGGRESSIVE MOVEMENT IN ANY DIRECTION INCLUDING ATTACK ON PHILIPPINES OR GUAM IS A POSSIBILITY*. CHIEF OF STAFF HAS SEEN THIS DESPATCH CONCURS AND REQUESTS ACTION ADEES TO INFORM SENIOR ARMY OFFICERS THEIR AREAS. UTMOST SECRECY NECESSARY IN ORDER NOT TO COMPLICATE AN ALREADY TENSE SITUATION OR PRECIPITATE JAPANESE ACTION. GUAM WILL BE INFORMED SEPARATELY." The postscript of a personal letter dated November 25 from Admiral Stark to Admiral Kimmel read: [97] "I held this up pending a meeting with the President and Mr. Hull today. I have been in constant touch with Mr. Hull and it was only after a long talk with him that I sent the message to you a day or two ago showing the gravity of the situation. He confirmed it all in today's meeting, as did the President. Neither would be surprised over a Japanese surprise attack. From many angles an attack on the Philippines would be the most embarrassing thing that could happen to us. There are some here who think it likely to occur. I do not give it the weight others do, but I included it because of the strong feeling among some people. You know I have generally held that it was not time for the Japanese to proceed against Russia. I still do. Also I still rather look for an advance into Thailand, Indo-China, Burma Road areas as the most likely. "I won't go into the pros or cons of what the United States may do. I will be damned if I know. I wish I did. The only thing I do know is that we may do most anything and that's the only thing I know to be prepared for, or we may do nothing I think it is more likely to be "anything." " On November 27, 1941, the following dispatch was sent Admiral Kimmel for action: [98] "*THIS DESPATCH IS TO BE CONSIDERED A WAR WARNING*. NEGOTIATIONS WITH JAPAN LOOKING TOWARD STABILIZATION OF CONDITIONS IN THE PACIFIC *HAVE CEASED* AND AN AGGRESSIVE MOVE BY JAPAN IS EXPECTED WITHIN THE NEXT FEW DAYS. THE NUMBER AND EQUIPMENT OF JAPANESE TROOPS AND THE ORGANIZATION OF NAVAL TASK FORCES INDICATES AN AMPHIBIOUS EXPEDITION AGAINST EITHER THE PHILIPPINES THAI OR KRA PENINSULA OR POSSIBLY BORNEO. *EXECUTE AN APPROPRIATE DEFENSIVE DEPLOYMENT PREPARATORY TO CARRYING OUT THE TASKS ASSIGNED IN WPL46*. INFORM DISTRICT AND ARMY AUTHORITIES. A SIMILAR WARNING IS BEING SENT BY WAR DEPARTMENT. SPENAVO [99] INFORM BRITISH. CONTINENTAL DISTRICTS GUAM SAMOA DIRECTED TAKE APPROPRIATE MEASURES AGAINST SABOTAGE." [96] Committee exhibit No. 37, p. 32. This dispatch was also sent for action to commander in chief Asiatic Fleet and commandants of the Twelfth, Thirteenth, and Fourteenth Naval Districts. [97] Committee exhibit No. 106. [98] Committee exhibit No 37, p. 36. This dispatch was also sent for action to the commander in chief et the Asiatic Fleet. It has been referred to throughout the proceedings as the "War Warning." [99] Special naval observer. PEARL HARBOR ATTACK 99 The following dispatch dated November 28, 1941, referring to the November 27 warning, was supplied Admiral Kimmel for his information: [100] "* * * ARMY HAS SENT FOLLOWING TO COMMANDER WESTERN DEFENSE COMMAND "NEGOTIATIONS WITH JAPAN APPEAR TO BE TERMINATED TO ALL PRACTICAL PURPOSES WITH ONLY THE BAREST POSSIBILITIES THAT THE JAPANESE GOVERNMENT MIGHT COME BACK AND OFFER TO CONTINUE. JAPANESE FUTURE ACTION UNPREDICTABLE BUT HOSTILE ACTION POSSIBLE AT ANY MOMENT. IF HOSTILITIES CANNOT REPEAT NOT BE AVOIDED THE UNITED STATES DESIRES THAT JAPAN COMMIT THE FIRST OVERT ACT. THIS POLICY SHOULD NOT REPEAT NOT BE CONSTRUED AS RESTRICTING YOU TO A COURSE OF ACTION THAT MIGHT JEOPARDIZE YOUR DEFENSE. PRIOR TO HOSTILE JAPANESE ACTION YOU ARE DIRECTED TO UNDERTAKE St-CH RECONNAISSANCE AND OTHER MEASURES AS YOU DEEM NECESSARY BUT THESE MEASURES SHOULD BE CARRIED OUT SO AS NOT REPEAT NOT TO ALARM CIVIL POPULATION- OR DISCLOSE INTENT. REPORT MEASURES TAKEN. A SEPARATE MESSAGE IS BEING SENT TO G TWO NINTH CORPS AREA RE SUBVERSIVE ACTIVITIES IN UNITED STATES. SHOULD HOSTILITIES OCCUR THEY WILL CARRY OUT THE TASKS ASSIGNED IN RAINBOW FIVE SO FAR AS THEY PERTAIN TO JAPAN. LIMIT DISSEMINATION OF THIS HIGHLY SECRET INFORMATION TO MINIMUM ESSENTIAL OFFICERS." WPL 52 IS NOT APPLICABLE TO PACIFIC AREA AND WILL NOT BE PLACED IN EFFECT IN THAT AREA EXCEPT AS NOW IN FORCE IN SOUTHEAST PACIFIC SUB AREA AND PANAMA NAVAL COASTAL FRONTIER. UNDERTAKE NO OFFENSIVE ACTION UNTIL JAPAN HAS COMMITTED AN OVERT ACT. BE PREPARED TO CARRY OUT TASKS ASSIGNED IN WPL 46 SO FAR AS THEY APPLY TO JAPAN IN CASE HOSTILITIES OCCUR." On December 1 the Chief of Naval Operations sent Admiral Kimmel a dispatch for information describing a Japanese intrigue in Malaya. The dispatch indicated that Japan planned a landing at Khota Baru in Malaya in order to entice the British to cross the frontier from Malay into Thailand. Thailand would then brand Britain an aggressor and call upon Japan for aid, thereby facilitating the Japanese entry into Thailand as a full-fledged ally and give Japan air bases on the Kra Peninsula and a position to carry out any further operations along Malaya. [100a] [100] Committee exhibit No. 37, p. 38. This dispatch was sent for action to the naval commanders on the west coast. [100a] This dispatch, No. 011400 which was addressed to the commander in chief of the Asiatic Fleet for action, read: "AMBASSADOR TSUBOKAMI IN BANGKOK ON TWENTY NINTH SENT TO TOKYO AS NUMBER EIGHT SEVEN TWO THE FOLLOWING QUOTE CONFERENCES NOW IN PROGRESS IN BANGKOK CONSIDERING PLANS AIMED AT FORCING BRITISH TO ATTACK THAI AT PADANG BESSA NEAR SINGORA AS COUNTER MOVE TO JAPANESE LANDING AT KOTA BHARU SINCE THAI INTENDS TO CONSIDER FIRST INVADER AS HER ENEMY, ORANGE BELIEVES THIS LANDING IN MALAY WOULD FORCE BRITISH TO INVADE THAI AT PADANG BESSA. THAI WOULD THEN DECLARE WAR AND REQUEST ORANGE HELP. THIS PLAN APPEARS TO HAVE APPROVAL OF THAI CHIEF OF STAFF BIJITTO. THAI GOVERNMENT CIRCLES HAVE BEEN SHARPLY DIVIDED BETWEEN PRO-BRITISH AND PRO-ORANGE UNTIL TWENTY FIVE NOVEMBER BUT NOW WANITTO AND SHIN WHO FAVOR JOINT MILITARY ACTION WITH ORANGE HAVE SILENCED ANTI ORANGE GROUP AND INTEND TO FORCE PREMIER PIBUL TO MAKE A DECISION. EARLY AND FAVORABLE DEVELOPMENTS ARE POSSIBLE UNQUOTE " See committee exhibit No. 112, p. 67.