EXHIBIT NO. 5 (HART INQUIRY)
[1]                              SECRET

                                                         Register No. 19

     FULL TITLE: JOINT COASTAL FRONTIER DEFENSE PLAN, HAWAIIAN COASTAL
                 FRONTIER AND FOURTEENTH NAVAL DISTRICT

                     SHORT TITLE: HCF 41 14ND-JCD-42

Under the provisions of AR 380-5 (paragraph 27) each recipient of this document will make return therefor on June 30, and December 31 of each year to the

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Assistant Adjutant General, Headquarters Hawaiian Department, Fort Shafter, T. H., except that recipient of this document serving with units of this Department will account for same by means of the memorandum receipt system as prescribed in letter, this headquarters, dated June 16, 1934, file No. AG 381 Misc (Secret), Subject: Hawaiian Department War Plans.

Navy holders of this plan will make quarterly reports as noted on Navy Distribution List, page 3.

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   Joint coastal frontier defense plan-Hawaiian coastal frontier table
                            of corrections

Change No.|Date of Entry|Signature and rank of Officer Entering Change
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                         Navy distribution list
_______________________________________________________________________
                                                             |Regis-
               Official to Whom Issued                       |tered
                                                             |Numbers
_____________________________________________________________|_________

*Chief of Naval Operations ................................... 18 and 19
*Commandant, Fourteenth Naval District .......................        20 *Commander-in-Chief, U. S. Pacific Fleet .....................        21
Commander Battle Force, U. S. Pacific Fleet ..................        22
Commander Scouting Force, U. S. Pacific Fleet ................        23
Commander Base Force, U. S. Pacific Fleet ....................        24
Aircraft, Battle Force, U S Pacific Fleet ....................        25
Commander Minecraft, Battle Force, U S Pacific Fleet .........        26
Commander Battleships, Battle Force, U. S Pacific Fleet ......        27
Commander Cruisers, Battle Force, U. S. Pacific Fleet ........        28
Commander Cruisers, Scouting Force, U. S. Pacific Fleet ......        29
Commander Destroyers, Battle Force, U. S. Pacific Fleet ......        30
Commander Submarines, Scouting Force, U. S. Pacific Fleet ....        31
Patrol Wing Two ..............................................        32
Commander Submarine Squadron Four ............................        33
Submarine Base PEARL HARBOR ..................................        34
+Commander Naval Air Station, PEARL HARBOR ...................        35
+Commander Naval Air Station, KANEOHE ........................        36
+District Intelligence Officer ...............................        37
+District Communication Officer ..............................        38
+Captain of the Yard, Navy Yard PEARL HARBOR .................        39
+Inspector of Ordnance, NAD, OAHU ............................        40

* Indicates original holders of 14ND-JCD-13

+ These holders will make quarterly reports to the Commandant, Fourteenth Naval District, who will in return report to the Chief of Naval Operations, Registered Publication Section. All others will make

these reports to Chief of Naval Operations, information copy to the Commandant, Fourteenth Naval District

Annexes will be issued only to those holders concerned and will not be accounted for to the Registered Publication Section.

[4]                        TABLE OF CONTENTS

                               Subject                          Page [1]
Section I. Directives .............................................    5
Section II. Delimitation of Areas .................................    6
   Hawaiian Coastal Frontier ......................................    6
   Hawaiian Coastal Zone ..........................................    6
   Hawaiian Naval Coastal Frontier ................................    6
   Hawaiian Naval Coastal Zone ....................................    6
   Hawaiian Defensive Sea Areas ...................................    6
   Defensive Sea Area of the Hawaiian Coastal Frontier ............    6
   Pearl Harbor Defensive Sea Area ................................    6
   Kaneohe Bay Defensive Sea Area .................................    7
   Palmyra, Kingman Reef, Johnston, Midway and Wake Defensive Sea
      Areas .......................................................    7
   Oahu Defensive Coastal Area ....................................    7

[1] Pages referred to are indicated by italic figures enclosed by brackets and represent pages of original exhibit. [No italicized page numbers in the electronic version, LWJ]

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                           Subject-Continued                    Page [1]
Section III. Estimate of the Situation ............................    7
   Tasks and Forces ...............................................    7
   Joint Task .....................................................    7
   Army Task ......................................................    7
   Navy Task ......................................................    7
   Army Forces ....................................................    8
   Navy Forces ....................................................    8
   Overseas Reinforcements ........................................    8
   Civil Organization .............................................    8
Section IV. Decisions .............................................    8
   Army Tasks .....................................................    9
   Navy Tasks .....................................................   10
Section V. Mobilization ...........................................   11
   Army Plans .....................................................   11
   Navy Plans .....................................................   12
Section VI. Joint Agreements ......................................   13
   Army-Navy Distribution .........................................   14

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HEADQUARTERS
HAWAIIAN DEPARTMENT.
Fort Shafter, T. H.
11 April 1941

                                 HEADQUARTERS FOURTEENTH NAVAL DISTRICT
                                          PEARL HARBOR NAVY YARD, T. H.,
                                                          11 April 1941.

  JOINT COASTAL FRONTIER DEFENSE PLAN HAWAIIAN COAST FRONTIER HAWAIIAN
                DEPARTMENT AND FOURTEENTH NAVAL DISTRICT

                        SECTION I-DIRECTIVES

1. RESPONSIBILITY. This Joint Coastal Frontier Defense Plan is prepared under the direction of the Commanding General, Hawaiian Department, and the Commandant, Fourteenth Naval District.

2. BASIS. This plan is based on Joint Army and Navy Basic War Plan RAINBOW No. 1, and Section V, page 61, Joint Action of the Army and the Navy, 1930, and will constitute the basis on which all subsidiary peace and war projects joint operating plans, and mobilization plans are based.

3. METHOD OF COORDINATION. The Commanding General of the Hawaiian Department and the Commandant of the Fourteenth Naval District have determined that in this Joint plan the method of coordination will be by mutual cooperation and that this method will apply to all activities wherein the Army and the Navy operate in coordination, until and if the method of unity of command is invoked, as prescribed in Joint Action of the Army and the Navy, 1935, Chapter 2, paragraph 9 b.

4. PLANNING REPRESENTATIVES. The Assistant Chief of Staff for War Planning (G-3), Headquarters HAWAIIAN DEPARTMENT, and the War Plans Officer, Headquarters FOURTEENTH NAVAL DISTRICT, are designated as planning representatives respectively for the Army and Navy Commanders in the HAWAIIAN COASTAL FRONTIER. (Par. 40 a. page 61, Joint Action of the Army and the Navy, 1935).

5. JOINT PLANNING COMMITTEE. A Local Joint Planning Committee is established to consist of the Chiefs of Staff, HAWAIIAN DEPARTMENT and FOURTEENTH NAVAL DISTRICT and such other Army and Navy Officers as may be appointed by the Commanding General, HAWAIIAN DEPARTMENT, and the Commandant. FOURTEENTH NAVAL DISTRICT (Section VI. page 133 Joint Action of the Army and the Navy, 1935). The Joint Planning Committee shall take cognizance of all matters affecting joint coordination in all subsidiary Plans or Projects constituting the Joint Defense Plans, HAWAIIAN COASTAL FRONTIER. The senior member thereof is authorized to designate such standing or special sub-committees as from time to time may be necessary.

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                   SECTION II-DELIMITATION OF AREAS

6. HAWAIIAN COASTAL FRONTIER. "The HAWAIIAN COASTAL FRONTIER consists of OAHU and such adjacent land and sea areas as are required for the defense of OAHU".

It has been determined that the HAWAIIAN COASTAL FRONTIER consists of land and sea areas bounded by arcs of twenty (20) miles radii with centers at OPANA POINT, MAUI; KAUIKI HEAD LIGHT, MAUI; LAUPAHOEHOE

[1] Pages referred to are indicated by italic figures enclosed by brackets and represent pages of original exhibit. [No italicized page numbers in the electronic version, LWJ]

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LIGHT, HAWAII; CAPE KUMUKAHI LIGHT, HAWAII; KALAE LIGHT, HAWAII; SOUTHWEST HEADLAND, KAHOOLAWE; LEAHI POINT, NIIHAU, LEHUA ISLAND, NIIHAU; KAILIU POINT, KAUAI, and arc of thirty (30) miles radius with its center at KAHUKU POINT, OAHU, and the tangents connecting these arcs in the order named.

7. HAWAIIAN COASTAL ZONE. The Hawaiian Coastal Zone comprises the waters of the HAWAIIAN COASTAL FRONTIER.

8. HAWAIIAN NAVAL COASTAL FRONTIER. The Hawaiian Naval Coastal Frontier comprises the HAWAIIAN COASTAL FRONTIER plus the areas bounded by the territorial waters of MIDWAY ISLAND, JOHNSTON ISLAND, PALMYRA ISLAND, CANTON ISLAND, and WAKE ISLAND.

9. HAWAIIAN NAVAL COASTAL ZONE. The Hawaiian Naval Coastal Zone comprises the Hawaiian Coastal Zone plus the territorial waters of MIDWAY ISLAND, JOHNSTON ISLAND, PALMYRA ISLAND, CANTON ISLAND, and WAKE ISLAND.

10. HAWAIIAN DEFENSIVE SEA AREAS. WPL-8, paragraph 2201, defines Defensive Sea Areas as of two kinds. In the Fourteenth Naval District of the first kind-2201.a.1 of WPL-8-is the Defensive Sea Area of the HAWAIIAN COASTAL FRONTIER approved by the Joint Board, Secretary of War and Secretary of the Navy and will be made effective by proclamation. Defensive Sea Areas of the second kind-2201.a.2. of WPL-8-have been established by executive order for PEARL HARBOR and KANEOHE.

(1) DEFENSIVE SEA AREA OF THE HAWAIIAN COASTAL FRONTIER. The Defensive Sea Area of the HAWAIIAN COASTAL FRONTIER includes all waters within an area bounded as follows:

By arcs of twenty (20) miles radii with centers at OPANA POINT, MAUI; KAUIKI HEAD LIGHT, MAUI; LAUPAHOEHOE LIGHT, HAWAII; CAPE KUMUKAHI LIGHT, HAWAII; KALAE LIGHT, HAWAII; SOUTHWEST HEADLAND KAHOOLAWE: LEAHI POINT, NIIHAU; LEHUA ISLAND, NIIHAU; KAILIU POINT, KAUAI; and are of thirty (30) miles radius with its center at KAHUKU POINT, OAHU, and the tangents connecting these arcs in the order named. This area when made effective will be given the short title-HAWAIIAN D. S. A.

(2) PEARL HARBOR-DEFENSIVE SEA AREA. The PEARL HARBOR-Defensive Sea Area comprises:

The area of water in PEARL HARBOR lying between extreme high water mark and the sea, and in and about the entrance channel to [7] said harbor within an area bounded by the extreme high water mark at the bearing south true from the southwestern corner of the PUULOA Naval Reservation, a line bearing south true from AHUA POINT LIGHT, and a line bearing west true from a point three (3) nautical miles due south true from AHUA POINT LIGHTHOUSE. This area is given the short title-PEARL D. S. A.

(3) KANEOHE BAY-DEFENSIVE SEA AREA. The KANEOHE BAY-Defensive Sea Area comprises:

All waters enclosed by lines drawn as follows: A line bearing northeast true extending three miles from KAOIO POINT, a line bearing northeast true extending four (4) nautical miles from KAPOHO POINT, and a line joining the seaward extremities of the two above-described bearing lines. This area is given the short title-KANEOHE D. S. A.

(4) PALYMRA, KINGMAN, REEF, JOHNSTON, MIDWAY, and WAKE-DEFENSIVE SEA AREAS. These defensive sea areas comprise territorial waters surrounding the islands from high water marks to a distance of three (3) nautical miles from these marks .

11. OAHU DEFENSIVE COASTAL AREA. The Defensive Coastal Area for OAHU comprises all water areas within the area of circles and the connecting tangents drawn with points as centers and with respective radii, as follows:

   KEAHI POINT-Forty-nine thousand (49,000) yards.
   PUU KAPOLEI-Forty-five thousand (45,000) yards.
   PUUIKI STATION [and]
   KAHUKU POINT   Twenty-three thousand (23,000) yards.

This area is given the short title-OAHU D. C. A.

                 SECTION III-ESTIMATE OF THE SITUATION

                           Tasks and Forces

12. CATEGORY OF DEFENSE. Category "D", as defined in Section III, Chapter V, Joint Action of the Army and the Navy, 1935.

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18. The estimate of the situation applicable to the respective forces is found in Estimate of the Situation, Hawaiian Department, and Estimate of the Situation, Fourteenth Naval District, RAINBOW No. 1.

14. TASKS.

a. JOINT TASK. To hold OAHU as a main outlying naval base, and to control and protect shipping in the Coastal Zone.

b. ARMY TASK. To hold OAHU against attacks by sea, land, and air forces and against hostile sympathizers; to support the naval forces.

c. NAVY TASK. To patrol the Coastal Zone and to control and protect shipping therein, to support the Army forces.

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15. FORCES.

a. ARMY FORCES.

The present garrison augmented by personnel and facilities to be obtained locally and by reinforcements from Continental United States as provided for in Joint Army and Navy Basic War Plan, RAINBOW No. 1.

b. NAVAL FORCES.

Naval Local Defense Forces of the Fourteenth Naval District, augmented by personnel and facilities to be obtained locally and by reinforcements as provided for in the Navy Basic War Plant, RAINBOW No. 1.

c. OVERSEAS REINFORCEMENTS.

(1) Army garrisons and Naval Local Defense Forces in the HAWAIIAN COASTAL FRONTIER will be reinforced at the earliest possible date, to the extent practicable, this will be done prior to M-Day.

(2) M-Day is the first day of mobilization, and is the time origin for the execution of this plan. M-Day may precede a declaration of war. As a precautionary measure, the War and Navy Departments may initiate or put into effect certain features of their respective plans prior to M-Day. Such parts of this plan as are believed necessary will be put into effect prior to M-Day as ordered by the War and Navy Departments or as mutually agreed upon by local, commanders.

d. CIVIL ORGANIZATION. A CIVIL ORGANIZATION, under the supervision of Army authorities, and in consultation and accord with Navy authorities, to reorganize the TERRITORY OF HAWAII for war, utilizing all personnel and materiel resources of the TERRITORY OF HAWAII in assisting the military and naval forces.

                         SECTION IV-DECISIONS

16. GENERAL.

a. The Commanding General, Hawaiian Department, and the Commandant Fourteenth Naval District, to provide for the needs of the defense of OAHU in accordance with the tasks, paragraph 14 above, and submit these plans to the War and Navy Departments, respectively.

b. The Commanding General, Hawaiian Department, and the Commandant, Fourteenth Naval District, to prepare plans for the execution of the tasks given in paragraph 14 above, these plans to include initial deployment and assignment of reinforcements when received.

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c. The Commanding General, Hawaiian Department, in consultation and accord with the Commandant, Fourteenth Naval District, to prepare plans for the mobilization of man-power and material resources in the TERRITORY OF HAWAII and their allocation to the Army and Navy forces in the HAWAIIAN COASTAL FRONTIER in accordance with the detailed agreements covered under Section VI, Detailed Joint Agreements, of this document.

d. Army and Navy subordinate tasks are assigned in accordance with Joint Action of the Army and the Navy, 1935, listed respectively, in paragraphs 17 and 19.

17. ARMY. The Commanding General, HAWAIIAN DEPARTMENT, shall provide for:

a. The beach and land, seacoast and antiaircraft defense of OAHU with particular attention to the PEARL HARBOR NAVAL BASE and naval forces present thereat, HONOLULU HARBOR, CITY OF HONOLULU, and the SCHOFIELD BARRACKS-WHEELER FIELD-LUALUALEI area. The increasing importance of the KANEOHE area is recognized.

b. An antiaircraft and gas defense intelligence and warning service.

c. Protection of landing fields and naval installations on outlying islands consistent with available forces.

d. Defense of installations on OAHU vital to the Army and Navy and to the civilian community for light, power, water, and for interior guard and sabotage, except within naval establishments.

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e. Defense against sabotage within the HAWAIIAN ISLANDS, except within naval shore establishments.

f. Establishment of an inshore aerial patrol of the waters of the OAHU D. C. A., in cooperation with the Naval Inshore Patrol (see par. 18. a.), and an aerial observation system on outlying islands, and an Aircraft Warning Service for the HAWAIIAN ISLANDS.

g. Support of naval aircraft forces in major offensive operations at sea conducted within range of Army bombers.

h. Provide personnel for and Army communication facilities to harbor control post provided for in paragraph 18. e.

i. In conjunction with the Navy, a system of land communications (coordinated by means of teletype, telegraph loops, and radio intercepts, and detailed joint instructions) to insure prompt transmittal and interchange of hostile intelligence. Radio communication between the Army and the Navy will be governed by "Joint Army and Navy Radio Procedure, The Joint Board, 1940".

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j. An intelligence service, which, in addition to normal functions, will gather, evaluate, and distribute both to the Army and to the Navy, information of activities of enemy aliens or alien sympathizers within the HAWAIIAN ISLANDS.

k. Counter-espionage within the HAWAIIAN ISLANDS.

l. Control of dangerous aliens or alien sympathizers in the HAWAIIAN ISLANDS.

m. Army measures to assure effective supervision, control, and censorship over communication systems which will conform to Joint Action of the Army and the Navy, 1935, Chapter IX.

n. Supply of all Army and civil population in the HAWAIIAN ISLANDS.

o. Hospitalization of all Army and civil population in the HAWAIIAN ISLANDS.

p. Reception and distribution of personnel and supplies for the Army and of supplies for the civil population.

18. NAVY. The Commandant, FOURTEENTH NAVAL DISTRICT, shall provide for:

a. An inshore patrol.

b. An offshore patrol.

c. An escort force.

d. An attack force

e. Provide and maintain a harbor control post for joint defense of PEARL and HONOLULU HARBORS.

f. Installation and operation of an underwater defense for PEARL and HONOLULU HARBORS. (Hydro-acoustic posts, fixed, when developed and installed probably will be under cognizance of the Army.)

g. Support of Army forces in the OAHU-D. C. A. and installation of submarine mine fields in the defense of the OAHU-D. C. A. as may be deemed necessary and practicable.

h. Sweeping channels and mine fields.

i. Distant reconnaissance.

j. Attacking enemy naval forces.

k. Maintenance of interior guard and defense against sabotage within all naval shore establishments.

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l. In conjunction with the Army, as provided for in paragraph 17 i., a local communication service to insure prompt transmittal and interchange of intelligence.

m. Navy measures to assure effective supervision, control and censorship over communication systems which will conform to Joint Action of the Army and the Navy, 1935, Chapter IX.

n. Operation of a Naval intelligence system, including counterespionage, for the collection, evaluation, and dissemination of hostile information.

o. Supply and hospitalization of all local naval defense forces.

p. Operation or supervision of all water transportation and facilities pertaining thereto.

                      SECTION V-MOBILIZATION

19. MOBILIZATION PLANS.

a. GENERAL.

(1) Mobilization plans to be prepared under directives of the Joint Army and Navy Basic War Plan, RAINBOW No. 1, will provide for the maximum possible effort to include the variant plan for the possible situation of a cutoff from the Mainland.

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(2) The mobilization plans will present the detailed utilization of the manpower and material resources of the HAWAIIAN ISLANDS, as well as of the reinforcements to be received from the Mainland.

(3) Mobilization plans will provide that, where facilities do not exist for the defense of OAHU, all work possible under current appropriations will be done to prepare them so that M-Day operation will be possible.

b. ARMY PLANS. The mobilization plans to be prepared for the Commanding General, Hawaiian Department, will provide for:-

(1) A survey in time of peace of the resources of the HAWAIIAN ISLANDS in men, material, supply and installations and a tabulation of those of military value or necessary for the maintenance of the civil population.

(2) An allocation, in consultation and accord with the Navy, of the resources of the HAWAIIAN ISLANDS to the Army, to the Navy, and to the civilian population in conformity with Section VI, Detailed Joint Agreements, of this document.

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(3) Plan for recruitment of Army personnel.

(4) Reception and distribution of Army personnel procured by selective service.

(5) Operation of a labor pool, in consultation and accord with the Navy, for use by the Army, by the Navy, and by civilian establishments in conformity with the detailed agreements, of this document, and utilizing to the best advantage the Territorial Civilian Effort Plan.

(6) Operation and administration of martial law in the HAWAIIAN ISLANDS, except in localities under naval jurisdiction, in event of martial law.

(7) Control and care of the civil population of the HAWAIIAN ISLANDS (civil organization (Par. 15 d. above) to assist), in event of martial law.

(8) Operation or supervision, in consultation and accord with the Navy, of all civil utilities and establishments in the HAWAIIAN ISLANDS vital to military effort and Civil life, in event of martial law.

(9) Maintenance and hospitalization of the civil population. in event of martial law.

(10) Operation or supervision of all local shipping facilities on shore allotted to the Army as covered in Section VI, Detailed Joint Agreements, of this document, in event of martial law.

(11) Reception housing or storage, and distribution of all Army reinforcements and supplies received on OAHU.

c. NAVY PLANS. The mobilization plans to be prepared by the Commandant, Fourteenth Naval District, will provide for:-

(1) A survey in time of peace of the Navy requirements in man-power, material supplies, and installations desired from local sources.

(2) Plan for recruitment of Navy personnel.

(3) Reception and distribution of Navy personnel procured by selective service.

(4) Procurement and distribution of local civil personnel needed for naval employment through the labor pool operated by the Army in conformity with the detailed agreements covered under Section VI, Detailed Joint Agreements of this document, in event of martial law.

(5) Operation or supervision of such civil utilities and establishments in the HAWAIIAN ISLANDS as are assigned to the Navy, as covered in Section VI, Detailed Joint Agreements of this document, in event of martial law.

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(6) Operation or supervision of all civil agencies in the HAWAIIAN ISLANDS for the regulation of water shipping, in event of martial law.

(7) Patrol and police of water areas, to include patrol of coastal zone and protection of shipping therein.

(8) Control of harbor and coastal lights, buoys, and aids to navigation.

(9) Control of all shipping activities in the HAWAIIAN ISLANDS.

(10) Operation or supervision of all local shipping facilities on shore allotted to the Navy as covered in Section VI, Joint Agreements, of this document, in event of martial law.

                     SECTION VI-JOINT AGREEMENTS

20. The details of the allocation of local resources of man-power, supply, material, and installations will be determined by joint agreement. Agreements will cover the following general subjects and such others as may require coordination from time to time:

   Allocation of military and civil man-power.
   Allocation of utilities and installations for furtherance of military
      operations.
   Allocation of transportation, land and water.
   Allocation of signal communications.

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   Allocation of material and supplies.
   Allocation of food supply.

21. This agreement to take effect at once and to remain effective until notice in writing by either party of its renouncement, in part or in whole, or until disapproved in part or in whole by either the War or the Navy Department. This HCF-41 (JCD-42) supersedes HCF-39 (JCD-13) except that the Annexes Nos. I to VII of latter remain effective and constitute Annexes I to VII, inclusive, of this plan.

                                          (Signed) C. C. Bloch,
                                               C. C. BLOCH,
                                         Rear-Admiral, U. S. Navy,
                                  Commandant, Fourteenth Naval District.
                                        (Signed) Walter C. Short,
                                             WALTER C. SHORT
                                        Lieut. General, U. S. Army.
                                      Commanding, Hawaiian Department.


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