31 Aug 1913
Japan
Japan
- Prince Hiroyasu was promoted to the rank of rear admiral and was named the commanding officer of the Yokosuka Military District. ww2dbase [Hiroyasu | Yokosuka, Kanagawa | CPC]
7 May 1917
Japan
Japan
- The keel of Tenryu was laid down at the Yokosuka Naval Arsenal, Japan. ww2dbase [Yokosuka Naval Arsenal | Tenryu | Yokosuka, Kanagawa | CPC]
11 Mar 1918
Japan
Japan
- Tenryu was launched at the Yokosuka Naval Arsenal, Japan. Commander Kanzo Kakuta was named the Chief Equipping Officer. ww2dbase [Yokosuka Naval Arsenal | Tenryu | Yokosuka, Kanagawa | CPC]
20 Sep 1918
Japan
Japan
- Minoru Ota was assigned to the First Naval District in Yokosuka, Japan. ww2dbase [Minoru Ota | Yokosuka, Kanagawa | CPC]
29 Aug 1920
Japan
Japan
- Tenryu departed Yokosuka, Japan for eastern Russia. ww2dbase [Tenryu | Yokosuka, Kanagawa | CPC]
1 May 1923
Japan
Japan
- Crown Prince Hirohito arrived at Yokosuka, Japan aboard battleship Kongo. ww2dbase [Showa | Kongo | Yokosuka, Kanagawa | CPC]
5 Sep 1923
Japan
Japan
- USS Stewart arrived at Yokosuka, Japan to assist with relief efforts after the Great Kanto earthquake. ww2dbase [Stewart | Yokosuka, Kanagawa | CPC]
21 Sep 1923
Japan
Japan
- USS Stewart departed Yokosuka, Japan. ww2dbase [Stewart | Yokosuka, Kanagawa | CPC]
6 Jun 1924
Japan
Japan
- Light carrier Hosho entered Yokosuka Naval Arsenal, Japan for post-commissioning modification work. ww2dbase [Yokosuka Naval Arsenal | Hosho | Yokosuka, Kanagawa | CPC]
20 Aug 1924
Japan
Japan
- Light carrier Hosho's modification work was completed at Yokosuka Naval Arsenal, Japan, which saw the removal of her island, mast, and crane. ww2dbase [Yokosuka Naval Arsenal | Hosho | Yokosuka, Kanagawa | CPC]
1 Dec 1924
Japan
Japan
- Minoru Ota was assigned to the First Naval District in Yokosuka, Japan. ww2dbase [Minoru Ota | Yokosuka, Kanagawa | CPC]
1 Dec 1931
Japan
Japan
- Admiral Kichisaburo Nomura was named the commanding officer of Yokosuka Naval District. ww2dbase [Kichisaburo Nomura | Yokosuka, Kanagawa | CPC]
10 Oct 1932
Japan
Japan
- Admiral Kichisaburo Nomura was named the commanding officer of Yokosuka Naval District. ww2dbase [Kichisaburo Nomura | Yokosuka, Kanagawa | CPC]
1 Jun 1934
Japan
Japan
- Mutsu was assigned to the Yokosuka Naval District, Japan. ww2dbase [Mutsu | Yokosuka, Kanagawa | CPC]
5 Sep 1934
Japan
Japan
- Mutsu entered Yokosuka Naval Arsenal, Japan for a reconstruction. ww2dbase [Yokosuka Naval Arsenal | Mutsu | Yokosuka, Kanagawa | CPC]
10 Jan 1935
Japan
Japan
- Paul Wenneker toured light cruiser Tama, battleship Kongo, and submarine I-2 at Yokosuka, Japan. ww2dbase [Paul Wenneker | Yokosuka, Kanagawa | CPC]
30 Sep 1936
Japan
Japan
- Mutsu completed her reconstruction at Yokosuka Naval Arsenal, Japan. ww2dbase [Yokosuka Naval Arsenal | Mutsu | Yokosuka, Kanagawa | CPC]
28 Jan 1937
Japan
Japan
- Kamoi departed Yokosuka, Japan for a survey mission in the Caroline Islands. ww2dbase [Kamoi | Yokosuka, Kanagawa | CPC]
1 Jul 1939
Japan
Japan
- Captain Shutoku Miyazato was made the chief equipping officer of Katori. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
20 Apr 1940
Japan
Japan
- Katori was commissioned into service and was attached to the Yokosuka Naval District as a special service vessel. Captain Hisashi Ichioka, previously the Chief Equipping Officer, was named her first commanding officer. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
4 May 1940
Japan
Japan
- The keel of Shinano was laid down at the Yokosuka Naval Arsenal in Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Shinano | Yokosuka, Kanagawa | CPC]
5 Sep 1940
Japan
Japan
- Akagi departed Yokosuka, Japan. ww2dbase [Akagi | Yokosuka, Kanagawa | CPC]
- Koichi Shiozawa was named the commanding officer of the Yokosuka Naval District, Japan. ww2dbase [Koichi Shiozawa | Yokosuka, Kanagawa | CPC]
15 Oct 1940
Japan
Japan
- Captain Hisashi Mito was made the commanding officer of Katori, relieving Hisashi Ichioka. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
15 Nov 1940
Japan
Japan
- Akagi was assigned as special duty ship in Yokosuka Naval District, Japan. ww2dbase [Akagi | Yokosuka, Kanagawa | CPC]
- Katori was made the flagship of Vice Admiral Mitsumi Shimizu of Japanese Sixth Fleet. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
6 Jan 1941
Japan
Japan
- Captain Noboru Owada was made the commanding officer of Katori, relieving Hisashi Mito. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
10 Apr 1941
Japan
Japan
- Akagi became the flagship of the newly organized First Air Fleet and assigned to Carrier Division 1. She spent the next few weeks in and around Yokosuka, Japan and off Kyushu. ww2dbase [Akagi | Yokosuka, Kanagawa | CPC]
8 Aug 1941
Japan
Japan
- Shokaku was commissioned into service at Yokosuka, Japan. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
8 Sep 1941
Japan
Japan
- Shokaku arrived at Yokosuka, Japan and disembarked Commander First Air Fleet. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
10 Sep 1941
Japan
Japan
- Shokaku became the flagship of Carrier Division 5. She would remain at Yokosuka, Japan for the rest of the month. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
- Koichi Shiozawa stepped down as the commanding officer of the Yokosuka Naval District, Japan. ww2dbase [Koichi Shiozawa | Yokosuka, Kanagawa | CPC]
14 Oct 1941
Japan
Japan
- Tatsuta Maru was acquired by the Japanese Navy and was assigned to the Yokosuka Naval District, Japan. Her civilian crew was replaced by that from the military. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
11 Nov 1941
Japan
Japan
- Ten Japanese submarines departed from Yokosuka Naval Base in Japan for Kwajalein of the Marshall Islands, where they would proceed for US Territory of Hawaii. ww2dbase [Attack on Pearl Harbor | Yokosuka, Kanagawa | Detailed Timetable | CPC]
- At Yokosuka, Japan, Admiral Mitsumi Shimizu held a briefing for Japanese Sixth Fleet officers aboard Katori on the Pearl Harbor raid. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
21 Nov 1941
Japan
Japan
- Japanese Navy acquired luxury ocean liner Hikawa Maru for use as a hospital ship; Hikawa Maru was assigned to the Yokosuka Naval District, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
24 Nov 1941
Japan
Japan
- Katori departed Yokosuka, Japan for Truk, Caroline Islands. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
23 Dec 1941
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan on her first voyage for the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
15 Jan 1942
Japan
Japan
- Minoru Ota was assigned to the First Naval District in Yokosuka, Japan. ww2dbase [Minoru Ota | Yokosuka, Kanagawa | CPC]
17 Jan 1942
Japan
Japan
- Tatsuta Maru was re-requisitioned by the Japanese Navy and was attached to the Yokosuka Naval District, Japan. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
3 Feb 1942
Japan
Japan
- Shokaku arrived at Yokosuka, Japan and remained there for the remainder of the month. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
16 Feb 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
- Katori arrived at Yokosuka, Japan. ww2dbase [Katori | Yokosuka, Kanagawa | CPC]
21 Feb 1942
Japan
Japan
- Katori entered the drydocks at Yokosuka Naval Arsenal in Japan for repairs. ww2dbase [Yokosuka Naval Arsenal | Katori | Yokosuka, Kanagawa | CPC]
22 Feb 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her second voyage for the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
27 Feb 1942
Japan
Japan
- Shokaku entered drydock at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Shokaku | Yokosuka, Kanagawa | CPC]
5 Mar 1942
Japan
Japan
- Shokaku left drydock at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Shokaku | Yokosuka, Kanagawa | CPC]
- Katori exited the drydocks at Yokosuka Naval Arsenal in Japan. ww2dbase [Yokosuka Naval Arsenal | Katori | Yokosuka, Kanagawa | CPC]
16 Mar 1942
Japan
Japan
- Shokaku returned to Yokosuka, Kanagawa, Japan. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
17 Mar 1942
Japan
Japan
- Shokaku departed Yokosuka, Japan for Staring Bay, Celebes, Dutch East Indies to join Operation C. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
- Tatsuta Maru arrived at Yokosuka, Japan. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
21 Mar 1942
Japan
Japan
- Tatsuta Maru departed Yokosuka, Japan. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
5 Apr 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan for repairs in the drydock. ww2dbase [Yokosuka Naval Arsenal | Hikawa Maru | Yokosuka, Kanagawa | CPC]
18 Apr 1942
Japan


Japan
- Submarine tender Taigei was lightly damaged by US air attack at Yokosuka, Japan; 7 casualties were recorded. ww2dbase [Ryuho | Yokosuka, Kanagawa | CPC]


25 Apr 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her third voyage for the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
- Nachi arrived at Yokosuka, Japan. ww2dbase [Nachi | Yokosuka, Kanagawa | CPC]
29 Apr 1942
Japan
Japan
- Nachi was made the flagship of Vice Admiral Boshiro Hosogaya of the 5th Fleet. She departed Yokosuka, Japan later in the day. ww2dbase [Nachi | Yokosuka, Kanagawa | CPC]
22 May 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan and departed for Kure, Japan later that day. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
15 Jun 1942
Japan
Japan
- Naka was named a special reserve vessel; she departed Yokosuka, Japan. ww2dbase [Naka | Yokosuka, Kanagawa | CPC]
19 Jun 1942
Japan
Japan
- I-168 arrived at Yokosuka, Japan, took on fuel, and departed for Kure, Japan. ww2dbase [I-68/I-168 | Yokosuka, Kanagawa | CPC]
22 Jun 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
23 Jun 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
11 Jul 1942
Japan
Japan
- Destroyer Yukikaze departed Yokosuka, Japan to escort transport Nankai Maru to Rabaul, New Britain, Bismarck Islands. ww2dbase [Yukikaze | Yokosuka, Kanagawa | CPC]
14 Jul 1942
Japan
Japan
- Nachi arrived at Yokosuka, Japan for refitting. She was assigned to Cruiser Division 21 of the 5th Fleet. ww2dbase [Nachi | Yokosuka, Kanagawa | CPC]
- Yugure was assigned to Destroyer Squadron 4 of the 2nd Fleet while at Yokosuka, Japan ww2dbase [Yugure | Yokosuka, Kanagawa | CPC]
24 Jul 1942
Japan
Japan
- Nachi entered the drydock at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Nachi | Yokosuka, Kanagawa | CPC]
30 Jul 1942
Japan
Japan
- Nachi exited the drydock at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Nachi | Yokosuka, Kanagawa | CPC]
1 Aug 1942
Japan
Japan
- The keel of Unryu was laid down at Yokosuka Naval Arsenal, Japan. ww2dbase [Yokosuka Naval Arsenal | Unryu | Yokosuka, Kanagawa | CPC]
8 Aug 1942
Japan
Japan
- Katori arrived at Yokosuka, Japan and was drydocked at the Yokosuka Naval Arsenal. ww2dbase [Yokosuka Naval Arsenal | Katori | Yokosuka, Kanagawa | CPC]
11 Aug 1942
Japan
Japan
- Mutsu departed Yokosuka, Japan. ww2dbase [Mutsu | Yokosuka, Kanagawa | CPC]
- Yugure began escorting the 2nd Fleet from Yokosuka, Japan toward Truk, Caroline Islands. ww2dbase [Yugure | Yokosuka, Kanagawa | CPC]
12 Aug 1942
Japan
Japan
- In Yokosuka, Japan, Saburo Sakai underwent surgery for the wound sustained during combat over Guadalcanal, Solomon Islands on 8 Aug 1942. ww2dbase [Saburo Sakai | Yokosuka, Kanagawa | CPC]
17 Aug 1942
Japan
Japan
- Katori exited the drydocks at the Yokosuka Naval Arsenal in Japan. ww2dbase [Yokosuka Naval Arsenal | Katori | Yokosuka, Kanagawa | CPC]
20 Sep 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
26 Sep 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 6th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
18 Oct 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
22 Oct 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 7th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
6 Nov 1942
Japan
Japan
- Shokaku arrived at Yokosuka, Japan and entered the navy yard immediately for a long period of extensive repairs and refit. ww2dbase [Yokosuka Naval Arsenal | Shokaku | Yokosuka, Kanagawa | CPC]
21 Nov 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
29 Nov 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 8th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
11 Dec 1942
Japan
Japan
- Tatsuta Maru was re-requisitioned by the Japanese Navy and was attached to the Yokosuka Naval District, Japan. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
- Light carrier Ryuho departed Yokosuka, Japan for Truk, Caroline Islands, escorted by destroyer Tokitsukaze. She had on board 20 light bombers and their pilots. ww2dbase [Ryuho | Yokosuka, Kanagawa | CPC]
14 Dec 1942
Japan
Japan
- Light carrier Ryuho arrived at Yokosuka, Japan. ww2dbase [Ryuho | Yokosuka, Kanagawa | CPC]
16 Dec 1942
Japan
Japan
- Light carrier Ryuho entered the drydock at Yokosuka, Japan for repairs. ww2dbase [Yokosuka Naval Arsenal | Ryuho | Yokosuka, Kanagawa | CPC]
25 Dec 1942
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
5 Jan 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 9th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
29 Jan 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
- Tatsuta Maru arrived at Yokosuka, Japan. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
30 Jan 1943
Japan
Japan
- Tatsuta Maru departed Yokosuka, Japan and arrived at Yokohama, Japan later on the same day. ww2dbase [Tatsuta Maru | Yokosuka, Kanagawa | CPC]
5 Feb 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 10th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
10 Feb 1943
Japan
Japan
- Light carrier Ryuho completed her repairs and exited the drydock at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Ryuho | Yokosuka, Kanagawa | CPC]
18 Feb 1943
Japan
Japan
- Destroyer Yuzuki departed Yokosuka, Japan for the Central Pacific. ww2dbase [Yuzuki | Yokosuka, Kanagawa | CPC]
25 Feb 1943
Japan
Japan
- I-168 arrived at Yokosuka, Japan. ww2dbase [I-68/I-168 | Yokosuka, Kanagawa | CPC]
2 Mar 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan then sailed to Yokohama, Japan later on the same day. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
5 Mar 1943
Japan
Japan
- I-168 departed Yokosuka, Japan for Paramushiro, Kurile Islands. ww2dbase [I-68/I-168 | Yokosuka, Kanagawa | CPC]
13 Mar 1943
Japan
Japan
- Chuyo arrived at Yokosuka, Japan, with Yugure and Hagikaze in escort. ww2dbase [Chuyo | Yugure | Yokosuka, Kanagawa | CPC]
15 Mar 1943
Japan
Japan
- Yugure departed Yokosuka, Japan at 1600 hours. ww2dbase [Yugure | Yokosuka, Kanagawa | CPC]
19 Mar 1943
Japan
Japan
- Shokaku departed Yokosuka, Japan for Kure, Japan. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
- Light carrier Ryuho departed Yokosuka, Japan for the Oita, Japan region of the Inland Sea. ww2dbase [Ryuho | Yokosuka, Kanagawa | CPC]
8 Apr 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
16 Apr 1943
Japan
Japan
- Katori entered the drydocks at Yokosuka Naval Arsenal in Japan for a scheduled refit. ww2dbase [Yokosuka Naval Arsenal | Katori | Yokosuka, Kanagawa | CPC]
18 Apr 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 12th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
30 Apr 1943
Japan
Japan
- Katori exited the drydocks at Yokosuka Naval Arsenal in Japan after completing a scheduled refit. ww2dbase [Yokosuka Naval Arsenal | Katori | Yokosuka, Kanagawa | CPC]
3 May 1943
Japan
Japan
- Nachi arrived at Yokosuka, Japan for repairs. ww2dbase [Nachi | Yokosuka, Kanagawa | CPC]
9 May 1943
Japan
Japan
- I-168 arrived at Yokosuka, Japan and was transferred to Submarine Squadron 3. ww2dbase [I-68/I-168 | Yokosuka, Kanagawa | CPC]
13 May 1943
Japan
Japan
- Yamato, Chuyo, Unyo, Myoko, Haguro, Yugure, Naganami, Samidare, and Ushio arrived at Yokosuka, Japan. Later on the same day, Yamato departed for Kure, Japan. ww2dbase [Yamato | Chuyo | Unyo | Haguro | Myoko | Yugure | Yokosuka, Kanagawa | CPC]
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
21 May 1943
Japan
Japan
- Shokaku arrived at Yokosuka, Japan with Cruiser Division 7 from Tokuyama, Japan. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
- Yamato was drydocked at Yokosuka, Japan for inspection and repairs. ww2dbase [Yokosuka Naval Arsenal | Yamato | Yokosuka, Kanagawa | CPC]
- One month after the death of Admiral Isoroku Yamamoto, who had been killed when the aircraft in which he was travelling on a tour of inspection was shot down by US fighters over Bougainville Island, the news was finally revealed to the Japanese public. At Yokosuka, Japan, senior Japanese naval officers led by the Emperor, in person, trooped aboard the battleship Musashi to pay their last respects to Yamamato. Along with the late Admiral's ashes, contained in a small white box, was a poem by the Admiral that had been found in his sea-cabin on the battleship Yamato. It began: "So many are dead, I cannot face the Emperor... soon I shall join the young dead soldiers." ww2dbase [Operation Vengeance | Isoroku Yamamoto | Yokosuka, Kanagawa | CPC, AC]
30 May 1943
Japan
Japan
- Yamato undocked from the drydocks at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Yamato | Yokosuka, Kanagawa | CPC]
31 May 1943
Japan
Japan
- Shokaku departed Yokosuka, Japan for the Inland Sea. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
11 Jun 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 13th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
- Hiyo, damaged by torpedo hits from USS Trigger on the previous day, arrived at Yokosuka, Japan. ww2dbase [Hiyo-class | Yokosuka, Kanagawa | CPC]
12 Jun 1943
Japan
Japan
- Isuzu, Ariake, Yugure, and Hiyo arrived at Yokosuka, Japan at 1030 hours. Torpedo-damaged Hiyo entered drydocks at Yokosuka Naval Arsenal for repairs at 1053 hours; her bottom scraped the bottom of the drydock while moving in. ww2dbase [Yokosuka Naval Arsenal | Hiyo | Isuzu | Yugure | Yokosuka, Kanagawa | CPC]
13 Jun 1943
Japan
Japan
- Light carrier Ryuho arrived at Yokosuka, Japan. ww2dbase [Ryuho | Yokosuka, Kanagawa | CPC]
16 Jun 1943
Japan
Japan
- Ryuho, Yugure, Yukikaze, and Ariake departed Yokosuka, Japan at 1100 hours. ww2dbase [Ryuho | Yukikaze | Yugure | Yokosuka, Kanagawa | CPC]
28 Jun 1943
Japan
Japan
- Irako departed Yokosuka, Japan at 1730 hours with convoy No. 3628 with transport Hakusan Maru, escorted by destroyer Ikazuchi. ww2dbase [Irako | Yokosuka, Kanagawa | CPC]
18 Jul 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
28 Jul 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 14th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
1 Sep 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
9 Sep 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 15th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
25 Sep 1943
Japan
Japan
- Unryu was launched at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Unryu | Yokosuka, Kanagawa | CPC]
4 Oct 1943
Japan
Japan
- Irako departed Yokosuka, Japan as a part of convoy No. 3002 with Tokyo Maru, escorted by destroyer Shiratsuyu. ww2dbase [Irako | Yokosuka, Kanagawa | CPC]
4 Nov 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
14 Nov 1943
Japan
Japan
- Irako departed Yokosuka, Japan at 1400 hours in convoy No. 3115. ww2dbase [Irako | Yokosuka, Kanagawa | CPC]
16 Nov 1943
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 16th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
25 Nov 1943
Japan
Japan
- Destroyer Yuzuki arrived at Yokosuka, Japan for a scheduled overhaul. ww2dbase [Yokosuka Naval Arsenal | Yuzuki | Yokosuka, Kanagawa | CPC]
26 Nov 1943
Japan
Japan
- Shokaku departed Yokosuka, Japan for Truk, Caroline Islands. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
7 Dec 1943
Japan
Japan
- Destroyer Yuzuki was refitted at the Ishikawa Shipyard and the Yokosuka Naval Arsenal, Japan. ww2dbase [Yokosuka Naval Arsenal | Yuzuki | Yokosuka, Kanagawa | CPC]
14 Dec 1943
Japan
Japan
- Destroyer Yukikaze arrived at Yokosuka, Japan. ww2dbase [Yukikaze | Yokosuka, Kanagawa | CPC]
- Irako arrived at Yokosuka, Japan. ww2dbase [Irako | Yokosuka, Kanagawa | CPC]
17 Dec 1943
Japan
Japan
- Shokaku arrived at Yokosuka, Japan. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
- Yamato arrived at Yokosuka, Japan and took on elements of Japanese Army 1st Independent Mixed Regiment and supplies. ww2dbase [Yamato | Yokosuka, Kanagawa | CPC]
20 Dec 1943
Japan
Japan
- Yamato departed Yokosuka, Japan for Truk, Caroline Islands escorted by Yamagumo and Tanikaze of Destroyer Division 4. ww2dbase [Yamato | Yokosuka, Kanagawa | CPC]
27 Dec 1943
Japan
Japan
- Shokaku entered drydock at Yokosuka, Japan. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
4 Jan 1944
Japan
Japan
- Irako departed Yokosuka, Japan for Truk, Caroline Islands with destroyers Shigure and Harusame in escort. ww2dbase [Irako | Yokosuka, Kanagawa | CPC]
11 Jan 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
17 Jan 1944
Japan
Japan
- Shokaku departed Yokosuka, Japan to join Zuikaku in the Inland Sea. ww2dbase [Shokaku | Yokosuka, Kanagawa | CPC]
19 Jan 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 17th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
22 Jan 1944
Japan
Japan
- Destroyer Yuzuki completed her refitting at Ishikawa Shipyard and the Yokosuka Naval Arsenal, Japan. Her aft torpedo mount and two of her four main guns were removed in exchange for additional anti-aircraft machine guns and improved underwater sound detection equipment. ww2dbase [Yokosuka Naval Arsenal | Yuzuki | Yokosuka, Kanagawa | CPC]
14 Feb 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
20 Feb 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 18th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
3 Mar 1944
Japan

Japan
- Irako began repairs at Yokosuka, Japan and later Yokohama, Japan. ww2dbase [Yokosuka Naval Arsenal | Irako | Yokosuka, Kanagawa | CPC]

4 Mar 1944
Japan
Japan
- Destroyer Yukikaze arrived at Yokosuka, Japan. ww2dbase [Yukikaze | Yokosuka, Kanagawa | CPC]
29 Mar 1944
Japan
Japan
- Destroyer Yukikaze departed Yokosuka, Japan to escort carrier Zuiho to Guam, Mariana Islands. ww2dbase [Yukikaze | Yokosuka, Kanagawa | CPC]
20 Apr 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 19th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
14 Jun 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
21 Jun 1944
Japan
Japan
- Nachi arrived at Yokosuka, Japan for refitting. ww2dbase [Nachi | Yokosuka, Kanagawa | CPC]
1 Jul 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 20th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
5 Jul 1944
Japan
Japan
- While undergoing repairs at Yokosuka and Yokohama, Japan, Irako was assigned to the Southwest Area Fleet based at Manila, Luzon, Philippine Islands. ww2dbase [Yokosuka Naval Arsenal | Irako | Yokosuka, Kanagawa | CPC]
1 Aug 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
6 Aug 1944
Japan
Japan
- Unryu was commissioned into service at Yokosuka, Japan with Captain Konishi Kaname in command. She was assigned to Carrier Division 1 of Japanese 3rd Fleet. ww2dbase [Unryu | Yokosuka, Kanagawa | CPC]
10 Aug 1944
Japan
Japan
- Unryu was assigned to 7th Base Air Force Air Attack Force under operational command of Japanese 3rd Air Fleet, although officially she remained with Carrier Division 1 of Japanese 3rd Fleet. ww2dbase [Unryu | Yokosuka, Kanagawa | CPC]
16 Aug 1944
Japan
Japan
- The Naval Air Technical Arsenal at Yokosuka, Japan formally began the development of the aircraft that would later be known as the Ohka. ww2dbase [MXY7 Ohka | Yokosuka, Kanagawa | CPC]
2 Sep 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 21th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
1 Oct 1944
Japan
Japan
- Most of the crew of Shinano boarded the carrier at Yokosuka, Japan by this date. ww2dbase [Shinano | Yokosuka, Kanagawa | CPC]
8 Oct 1944
Japan
Japan
- Shinano was launched at Yokosuka, Japan. During the launch, one of the caissons at the end of the dock lifted unexpectedly, causing her to move forward, damaging the bow. ww2dbase [Yokosuka Naval Arsenal | Shinano | Yokosuka, Kanagawa | CPC]
9 Oct 1944
Japan
Japan
- Submarine I-369 was completed at the Yokosuka Navy Yard, Japan as a Type D1 Tei-gata transport submarine. She was commissioned into service under the command of Lieutenant Shigeo Matsushima. ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
- Japanese submarine I-8 arrived at Yokosuka Naval Base, Japan. ww2dbase [Yokosuka, Kanagawa | CPC]
26 Oct 1944
Japan
Japan
- Shinano completed bow repairs at Yokosuka, Japan. ww2dbase [Yokosuka Naval Arsenal | Shinano | Yokosuka, Kanagawa | CPC]
28 Oct 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
5 Nov 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 22th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
19 Nov 1944
Japan
Japan
- Shinano was comissioned into service at Yokosuka, Japan with Captain Toshio Abe in command. ww2dbase [Shinano | Yokosuka, Kanagawa | CPC]
28 Nov 1944
Japan
Japan
- USS Archerfish surfaced south of Tokyo Bay, Japan at 1718 hours. At 1800 hours, the incomplete Japanese aircraft carrier Shinano departed Yokosuka, Japan, 2,175 officers and crew, 300 shipyard workers, and 40 civilians on board; she was escorted by destroyers Hamakaze, Yukikaze, and Isokaze and submarine chaser Cha-241. At 2034 hours, Archerfish sighted Inamba Shima about 90 miles south of the entrance to Tokyo Bay. At 2048 hours, Archerfish's radar detected a contact approaching from the north. At 2140 hours, commanding officer Commander Joseph Enright identified the target as an unknown aircraft carrier. A message was sent to Commander Submarines Pacific Vice Admiral Charles A. Lockwood in Pearl Harbor, US Territory of Hawaii, who on the following day would order all submarines in the area to converge on this target. ww2dbase [Yokosuka Naval Arsenal | Shinano | Hamakaze | Yukikaze | Archerfish | Yokosuka, Kanagawa | CPC]
10 Dec 1944
Japan
Japan
- Kamoi entered drydocks at Yokosuka, Japan for repairs. ww2dbase [Kamoi | Yokosuka, Kanagawa | CPC]
15 Dec 1944
Japan
Japan
- Captain Yoshiro Fujimaki was named the commanding officer of Kamoi while the ship was at Yokosuka, Japan. ww2dbase [Kamoi | Yokosuka, Kanagawa | CPC]
22 Dec 1944
Japan
Japan
- Kamoi departed Yokosuka, Japan at 0652 hours, escorted by auxiliary submarine chaser CHa-211, submarine chaser Toshi Maru No. 1, and auxiliary minesweeper Hagoromo Maru; she arrived at Shimizu, Shizuoka Prefecture, Japan at 1731 hours. ww2dbase [Kamoi | Yokosuka, Kanagawa | CPC]
25 Dec 1944
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
21 Jan 1945
Japan
Japan
- Submarine I-369 departed Yokosuka, Japan with supplies for Minamitorishima (Marcus Island). ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
26 Jan 1945
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 23th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
5 Feb 1945
Japan
Japan
- Submarine I-369 arrived at Yokosuka, Japan. ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
12 Feb 1945
Japan
Japan
- Submarine I-369 departed Yokosuka, Japan with supplies for Chichi Jima, Japan. ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
21 Feb 1945
Japan
Japan
- Submarine I-369 arrived at Yokosuka, Japan. ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
14 Mar 1945
Japan
Japan
- I-14 was commissioned into service; Commander Tsuruzo Shimizu remained in command. The submarine was assigned to Yokosuka Naval District. She departed Kobe later in the same day. ww2dbase [I-14 | Yokosuka, Kanagawa | CPC]
24 Mar 1945
Japan
Japan
- Japanese hospital ship Hikawa Maru arrived at Yokosuka, Japan and prepared to enter drydocks for repairs. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
16 Apr 1945
Japan
Japan
- Submarine I-369 departed Yokosuka, Japan for Caroline Islands. She carried 0.312 tons of food, 6.303 tons of weapons and ammunition, 25 tons of fuel, and 4.4 tons of other cargo for Truk, and 38.9 tons of food and 2.6 tons of other cargo for Woleai. ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
30 Apr 1945
Japan
Japan
- Japanese hospital ship Hikawa Maru departed Yokosuka, Japan for her 24th voyage with the Japanese Navy. ww2dbase [Hikawa Maru | Yokosuka, Kanagawa | CPC]
24 May 1945
Japan
Japan
- Submarine I-369 arrived at Yokosuka, Japan. ww2dbase [I-369 | Yokosuka, Kanagawa | CPC]
18 Jul 1945
Japan
Japan
- Kasuga capsized in her mooring during a US Navy raid on Yokosuka, Japan. ww2dbase [Preparations for Invasion of Japan | Kasuga | Yokosuka, Kanagawa | CPC]
- Escort destroyer Yaezakura, construction not yet completed and had been abandoned since the previous month, was destroyed in a US Navy raid on Yokosuka, Japan. ww2dbase [Preparations for Invasion of Japan | Yokosuka, Kanagawa | HM]
30 Aug 1945
Japan




See all photos dated 30 Aug 1945
Japan
- USS San Diego arrived at Yokosuka, Japan. ww2dbase [Japan's Surrender | San Diego | Yokosuka, Kanagawa | CPC]




See all photos dated 30 Aug 1945
31 Aug 1945
Japan
Japan
- I-14 entered the breakwater of Yokosuka Naval District, Kanwagawa Prefecture, Japan. ww2dbase [I-14 | Yokosuka, Kanagawa | CPC]
15 Oct 1945
Japan
Japan
- The Yokosuka Naval Arsenal in Japan was abolished in name, but the facilities would continue to operate under the control of the US Navy. ww2dbase [Yokosuka Naval Arsenal | Yokosuka, Kanagawa | CPC]
1 Nov 1945
Japan
Japan
- I-14, under the command of US Navy Commander John S. McCain, Jr., departed Yokosuka, Japan for Sasebo, Japan. ww2dbase [I-14 | Yokosuka, Kanagawa | CPC]
13 Nov 1947
Japan
Japan
- Landing ship No. 147 was transferred to the United States while at Yokosuka, Japan. ww2dbase [No. 101/103-class | Yokosuka, Kanagawa | CPC]
18 Jun 1951
Japan
Japan
- USS Kimberly arrived at Yokosuka, Japan. ww2dbase [Kimberly | Yokosuka, Kanagawa | CPC]
23 Jun 1951
Japan
Japan
- USS Kimberly departed Yokosuka, Japan for the Yellow Sea. ww2dbase [Kimberly | Yokosuka, Kanagawa | CPC]
17 Oct 1952
Japan
Japan
- USS Missouri arrived at Yokosuka, Japan and became the flagship of Vice Admiral Joseph J. Clark of the US Navy 7th Fleet. ww2dbase [Missouri | Yokosuka, Kanagawa | CPC]
4 Jun 1956
Japan
Japan
- USS Wasp arrived at Yokosuka, Japan. ww2dbase [Wasp (Essex-class) | Yokosuka, Kanagawa | CPC]
15 Oct 1956
Japan
Japan
- USS Ticonderoga began a tour in Asian waters, based out of Yokosuka, Japan. ww2dbase [Ticonderoga | Yokosuka, Kanagawa | CPC]
29 Nov 1956
Japan
Japan
- USS Saint Paul arrived at Yokosuka, Japan and was named the flagship of the US 7th Fleet. ww2dbase [Saint Paul | Yokosuka, Kanagawa | CPC]
9 Mar 1958
Japan
Japan
- USS Saint Paul arrived at Yokosuka, Japan. ww2dbase [Saint Paul | Yokosuka, Kanagawa | CPC]
25 Nov 1963
Japan
Japan
- USS Archerfish departed Yokosuka, Japan. ww2dbase [Archerfish | Yokosuka, Kanagawa | CPC]
6 Nov 1964
Japan
Japan
- USS Archerfish arrived at Yokosuka, Japan. ww2dbase [Archerfish | Yokosuka, Kanagawa | CPC]
27 Nov 1964
Japan
Japan
- USS Archerfish departed Yokosuka, Japan. ww2dbase [Archerfish | Yokosuka, Kanagawa | CPC]
Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis
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