25 Apr 1943

- Admiral Mineichi Koga arrived aboard Yamato for an inspection tour; he arrived to become the new Commander-in-Chief of the Combined Fleet, but that fact would be kept secret until the news of Yamamoto's death was to be made public next month. ww2dbase [Yamato | CPC]
- Commanding officer of the Chinese 5th Army defected to the Japanese. ww2dbase [CPC]
- USS Snook sank a Japanese or Chinese sampan with her deck gun off China. ww2dbase [Snook | CPC]
- Commander Shinichirou Maeda was made the commanding officer of Tanikaze. ww2dbase [Tanikaze | CPC]
- Frederick Aikman shot down a German Bf 109G aircraft. ww2dbase [Frederick Aikman | CPC]
- USS Grayback departed Brisbane, Australia for her seventh war patrol. ww2dbase [Grayback | Brisbane, Queensland | CPC]
- US Navy squadrons VF-26, VF-27, and VF-28, all equipped with F4F fighters, were transferred out of Henderson Field on Guadalcanal, Solomon Islands. ww2dbase [Henderson Field | Lunga Point, Guadalcanal | CPC]
- Repair ship Akashi began repairing cruiser Aoba at Truk, Caroline Islands. ww2dbase [Akashi | Truk | CPC]
- Leonardo da Vinci hit British tanker Doryssa, en route from Cape Town, South Africa to Abadan, Iran, with a torpedo in the Indian Ocean at 1726 hours. At 1845 hours, a second torpedo hit her. Shortly after, Leonardo da Vinci closed in and sank the tanker with gunfire. 53 were killed, and the 11 survivors were picked up by British whaler HMSAS Southern Barrier five days later. Having expended all torpedoes, the Italian submarine began her journey back to Bordeaux, France. ww2dbase [Leonardo da Vinci | Raids into the Indian Ocean | CPC]
- Naka departed Yokosuka, Japan. ww2dbase [Naka | Yokosuka, Kanagawa | CPC]
- Jürgen Stroop reported that 27,464 Jews had been captured in the Jewish ghetto of Warsaw, Poland. ww2dbase [Warsaw Ghetto Uprising | Jürgen Stroop | Warsaw | CPC]
- USS Wahoo declared her readiness for a war patrol while at Midway Atoll. ww2dbase [Wahoo | Midway Bases | Midway | CPC]
- USS Wahoo departed Midway Atoll for her fifth war patrol. ww2dbase [Wahoo | Midway Bases | Midway | CPC]


25 Apr 1943 Interactive Map
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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