Merchant and warships arriving at Gibraltar according to the Kriegsnachrichten of the Chef des Admiralstabes der Marine dated Berlin 14 August 1917

An item reported that between 6-10 August arrived at Gibraltar coming from the east: 10 armed British steamships; as part of a convoy: 1 Italian auxiliary cruiser, 1 armed British steamship, 2 Belgian (?) steamships, 1 Japanese steamship, 1 Norwegian steamship, 2 armed British steamships, 1 Danish steamship and 1 armed Italian steamship-1 armed French steamship, 1 armed Italian steamhip, 2 with 2 guns armed Italian steamship, 2 with 2 guns armed British paddle steamships.

Source

Bundesarchiv RM-40-622

Japanese cruiser Akashi visited islands in the Japanese Pacific Mandate in 1923-1924

The American Consul at Nagasaki, Japan Henry B. Hitchkock supplied on 20 November 1923 the time table for the Akashi for her intended Pacific cruise to visit the Japanese mandate. Departure Kure Naval Statio, Japan on 19 November, visit Yap 26 November-1 December, Pelew Islands 6-12 December, Angaur 12-15 December, Pelew Islands 26 January-9 January, Yap 10-12 January, Truk 6-14 February, Ponape 20-26 February, Kusaie 28 February-2 March, Jaluit 4-9 March, Ponape 16-22 March, Truk 24 March-2 April, Rota 5-8 April and Saipan arrival on 8 April.(1)

Note

1. Part of Suma-class protected cruisers preceded by Akitsushima succeeded by Takasago, ordered under 1893 Fiscal Year, laid down by Yokosuka Naval Arsenal on 6 August 1894, launched on 18 December 1897, completed on 30 March 1899, reclassified as 2nd class coastal defence vessel on 1 September 1921, stricken on 1 April 1928 and sunk as a target on 3 August 1930.

Source

Record Group 64: Records of the National Archives and Records AdministrationSeries: Records of the Department of State Relating to Internal Affairs of Japan. Naval Affairs, Navy, Naval Vessels: 894.30 - 894.304 THRU Naval Affairs, Navy, Naval Vessels: Movements of Naval Vessels: 894.33 - 894.3311f. Microfilm 422 roll 19. 

Russian cargo ship Lyesnik seized by the Japanese in 1904

Gross tonnage 100 tons. Schooner. Cargo salt. Captured lying at Nagasaki, Japan on 17 February 1904. No appeal against confiscation. The war between the Russian and Japanese empires was between 8 February 1904-5 September1905.

Source

Official history (Naval and Military) of the Russo-Japanese War. Vol. II. Liao Yang, the Sha Ho, Port Arthur. Prepared by the Historical Section of the Committee of Imperial Defence. London, 1912. 

Japanese commander-in-chief combined fleet present in the Mandates according to the U.S. Joint Intelligence Committee. Daily summary dated 12 January 1942

An item reported the probably presence of the Japanese commander-in-chief combined fleet in the Mandates.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary dated 12 January 1942 No. 33 

Japanese naval forces in the Philippines-Dutch East Indies area to be strenghtened according to the U.S. Joint Intelligence Committee. Daily summary dated 20 January 1942

An item reported that there were strong indications that the Japanese naval concentration at Truk was to be added to the 2nd and 3rd Fleets active in the Philippines-Dutch East Indies area. Kure and Bako served for this purpose as convoy centers. Other convoy centers were Sasebo and Camranh Bay for Malaya and Yokosuka for the Mandates.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 41 dated 20 January 1942

Unexpected strong Japanese naval force in the Japanese Mandates according to the U.S. Joint Intelligence Committee. Daily summary dated 15 January 1942

An item reported that new information revealed that the Japanese naval force in the Japanese Mandates was stronger as first believed and could even include 2 aircraft carriers.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary dated 15 January 1942 No. 36.

The positions of the Japanese aircraft carriers according to the U.S. Joint Intelligence Committee. Daily summary dated 22 January 1942

An item reported the estimated positions of the Japanese aircraft carriers: Cardiv 1 and 5 near Rabaul, New Guinea, Cardiv 2 east of the Philippines, Cardiv 3 between Japan and the Phulippines and the Cardiv 4 between the Mandates and Yokosuka.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 43 dated 22 January 1942

Strength of the Japanese Battle Fleet between the Mandates and Japan according to the U.S. Joint Intelligence Committee. Daily summary dated 16 December 1941

An item referred to Spenavo, London reported the estimated strength of the Japanese Battle Fleet between the Mandates and Japan on 6 battleships, 4 heavy cruisers, 1 light cruiser, 16 destroyers and 15 submarines.

Source

Map Room Papers (Roosevelt Administration) mr0422a. U.S. Joint Intelligence Committee. Daily summary No. 6 Dated 16 December 1941.

Japanese aware of positions of Allied submarines according to the U.S. Joint Intelligence Committee. Daily summary dated 31 January 1942

An item referred to Chinese sources reporting that a partly descripted Japanese message pointed out that the Japanese were aware of the positions of 10 Allied warships mostly submarines. This confirms earlier reports dealing with the high efficiency of enemy radio direction stations of which large numbers were available in the Mandates, on board of surface units and probably in occupied territories. Between 1-24 January 1942 Japanese submarines destroyed 13 Allied ships in Asiatic waters, 10 with torpedoes, 3 with gunfire. It was believed that 10 Japanese submarines were involved in hunting merchant shipping and the scale of operations was increasing.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945 mr0422. U.S. Joint Intelligence Committee. Daily summary No. 52 dated 31 January 1942

Strength of the Japanese naval force in the Mandated Islands according to the U.S. Joint Intelligence Committee. Daily summary dated 16 December 1941

An item referred to Spenavo, London reported the estimated strength of the Japanese naval force in the Mandated Islands on 5 light cruisers, 8 destroyers, 9 submarines and 1 seaplane tender.

Source

Map Room Papers (Roosevelt Administration) mr0422a. U.S. Joint Intelligence Committee. Daily summary No. 6 Dated 16 December 1941.

Japanese naval enforcements sent to the Mandated Islands according to the U.S. Joint Intelligence Committee. Daily summary dated 10 April 1942

 An item reported that a number of Japanese small vessels probably motor torpedo boats were sent to the south to strenghth the defence of the Mandated Islands.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 121 dated 10 April 1942

Japanese ships assigned routes between Japan and the Mandates according to the U.S. Joint Intelligence Committee. Daily summary dated 14 April 1942

An item reported that Japanese ships were assigned definite routes between Japan and the Mandates and now extending into the New Britain area [Australian mandated territory]. In the vicinity of the Bonin Islands were escorts available if needed.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 125 dated 14 April 1942

Japanese air strength in Japanese Mandates strenghtened according to the U.S. Joint Intelligence Committee. Daily summary dated 5 April 1942

An item reported that the Japanese steadily increased their air strenght in the Japanese Mandates but there was hardly yan intelligence available dealing with surface ships. The J.I.C. commented that apparently the Japanese choose for aircraft as main defence weapon.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 116 dated 5 April 1942.

Japanese ships probably underway to New Guinea according to the U.S. Joint Intelligence Committee. Daily summary dated 28 April 1942

An item reported that were there indications that some Japanese surface vessels might be enroute to Rabaul [Papua New Guinea] coming from Truk (Japanese Mandates). While there was no task force available for a major offensive in Melanesia the occupation of Tulagi (Solomon Islands] was expected on short notice and possible followed by an attack on Por Moresby.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 139 dated 28 April 1942. 

Japanese intended to complete base at Kwajalein as soon as possible according to the U.S. Joint Intelligence Committee. Daily summary dated 1 March 1942

An item reported that Japanese construction engineer arrived recently at Kwajalein, Japanese Mandates [nowadays Republic of the Marshall Islands] with the intention to complete the base with materials to arrive on very short notice.(1)

Note

1. For instance an aerial runway.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 81 dated 1 March 1942.