25 Jul 1943
- The RAF commenced dropping small strips of metal foil (codename "Window") to confuse frequencies of the efficient German precision radars. ww2dbase [AC]
- Orde Wingate was recalled to Britain. ww2dbase [Orde Wingate | CPC]
- USS Pompon sank Japanese cargo ship Thames Maru in the Dutch East Indies and damaged two other ships; she expended 8 torpedoes and observed 5 hits. ww2dbase [Pompon | CPC]
- US Army Major General Nathan Twining replaced US Navy Rear Admiral Marc Mitscher as Commander, Aircraft, Solomons. ww2dbase [Marc Mitscher | CPC]
- USS S-35 arrived at Dutch Harbor, US Territory of Alaska, ending her sixth war patrol. ww2dbase [S-35 | Unalaska | CPC]
- Léon Degrelle was asked to leave a Catholic mass for wearing the SS uniform; military uniforms had been banned from masses by the Belgian Roman Catholic Church in 1940. ww2dbase [Léon Degrelle | CPC]
- The Americans launched what would be the final offensive against Japanese positions on New Georgia in the Solomon Islands. ww2dbase [Solomon Islands Campaign | New Georgia | CPC]
- I-168 departed Truk, Caroline Islands for Rabaul. ww2dbase [I-68/I-168 | Truk | CPC]
- Repair ship Akashi completed the repair work for cruiser Aoba at Truk, Caroline Islands. ww2dbase [Akashi | Truk | CPC]
- Irako departed Truk, Caroline Islands for Kure, Japan with cruiser Aoba, with destroyers Amatsukaze and Urakaze in escort. ww2dbase [Irako | Truk | CPC]
- 109 USAAF bombers attacked Hamburg, Germany in the afternoon as a follow up to the night raid by British bombers on the previous day; 15 bombers were lost. German passenger ship Weissesee was sunk in the harbor, the incomplete passenger liner Vaterland was heavily damaged at the Blohm und Voss shipyard, and the incomplete submarine U-1011 was also damaged at the Blohm und Voss shipyard. ww2dbase [Weissesee | U-1011 | Blohm und Voss | Bombing of Hamburg, Dresden, and Other Cities | Hamburg | TH]
- Essen, Germany was bombed by Allied aircraft; 2,000 tons of bombs were expended. ww2dbase [Bombing of Hamburg, Dresden, and Other Cities | Essen | CPC]
- Troops of German 1st Mountain Division massacred 153 people of the village of Mousiotitsa in Greece. ww2dbase [Mousiotitsa, Epirus | CPC]
- Benito Mussolini was arrested. Upon learning the news of the change in government, German troops began to disarm the Italian military. ww2dbase [Operation Eiche | TH]
- Arturo Riccardi stepped down from all his leadership positions. ww2dbase [Arturo Riccardi | CPC]
- German submarine U-703 arrived at Hopen island, Norway and picked up four survivors of Russian freighter Dekabrist, including the skipper Beliaev. ww2dbase [Arctic Convoys | Hopen | CPC]

25 Jul 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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