September 2 – WWII: The island of Les Casquets in the Channel Islands is raided by the forerunner of the British SAS, the SSRF, led by Major Gus March-Phillipps; this is one of the first raids by Anders Lassen VC. In the raid, the entire garrison of 7 is abducted and returned to England as prisoners, and the radio and lighthouse are wrecked. September 3 WWII: Erwin Rommel orders a general retreat and carries the German forces of Panzer Army Africa back to the line running from Tel el Eisa – Deir el Shein - west of Deir el Munassib down to the Qattara Depression. Allied forces of the 2nd New Zealand Division and the British 7th Armoured Division ("Desert Rats") begin an assault, but they are repelled in a fierce rearguard action by the German 90th Light Division. During the attack, Rommel loses some 2,900 men, 50 tanks, a similar number of guns, and 400 vehicles.Carver, Michael (1962). El Alamein, p. 70. Ware, Hertfordshire: Wordsworth Editions. . The Holocaust: A German attempt to liquidate the Jewish Łachwa Ghetto in occupied Poland leads to an uprising, probably the first ghetto uprising of the war. September 5 WWII: Battle of Milne Bay: Japanese forces suffer their first defeat on land. The Holocaust: The Jews of Wolbrom in occupied Poland are rounded up by the Germans and their Ukrainian collaborators. September 9 – WWII: A Japanese floatplane drops incendiary devices at Mount Emily, near Brookings, Oregon, in the first of two "Lookout Air Raids", the first bombing of the continental United States. September 10 WWII: North Atlantic convoy ON 127 is attacked by U-boats, sinking 6 ships. The Women's Auxiliary Ferrying Squadron (WAFS) begins operation in the United States. September 12 – WWII: The , carrying civilians, Allied soldiers, and Italian prisoners of war, is torpedoed off the coast of West Africa and sinks, killing 1,649 people. September 14–16 – WWII: Battle of Ioribaiwa: Australian forces (some 3,000 men) under Major-General Selwyn Porter are forced to withdraw to Imita Ridge, due to supply problems. September 15 – WWII: The Women's Flying Training Detachment (WFTD) is established in the United States. September 24 – WWII: Andrée Borrel and Lise de Baissac become the first female SOE agents to be parachuted into occupied France. September 26 – The Holocaust: Nazi official August Frank issues the August Frank memorandum, setting out how the belongings of "evacuated" (i.e. murdered) Jews are to be disposed of. September 27 – WWII: Both the commerce raiding German auxiliary cruiser Stier and American Liberty ship sink, following a gun battle in the South Atlantic. Hilfskreuzer Stier is the only commerce raider to be sunk by a defensively equipped merchant ship.
September 2 – WWII The island of Les Casquets in the Channel Islands is raided by the forerunner of the British SAS the SSRF led by Major Gus March-Phillipps; this is one of the first raids by Anders Lassen VC In the raid the entire garrison of 7 is abducted and returned to England as prisoners and the radio and lighthouse are wrecked September 3 WWII Erwin Rommel orders a general retreat and carries the German forces of Panzer Army Africa back to the line running from Tel el Eisa – Deir el Shein - west of Deir el Munassib down to the Qattara Depression Allied forces of the 2nd New Zealand Division and the British 7th Armoured Division ("Desert Rats") begin an assault but they are repelled in a fierce rearguard action by the German 90th Light Division During the attack Rommel loses some 2900 men 50 tanks a similar number of guns and 400 vehiclesCarver Michael (1962) El Alamein p 70 Ware Hertfordshire Wordsworth Editions  The Holocaust A German attempt to liquidate the Jewish Łachwa Ghetto in occupied Poland leads to an uprising probably the first ghetto uprising of the war September 5 WWII Battle of Milne Bay Japanese forces suffer their first defeat on land The Holocaust The Jews of Wolbrom in occupied Poland are rounded up by the Germans and their Ukrainian collaborators September 9 – WWII A Japanese floatplane drops incendiary devices at Mount Emily near Brookings Oregon in the first of two "Lookout Air Raids" the first bombing of the continental United States September 10 WWII North Atlantic convoy ON 127 is attacked by U-boats sinking 6 ships The Women's Auxiliary Ferrying Squadron (WAFS) begins operation in the United States September 12 – WWII The  carrying civilians Allied soldiers and Italian prisoners of war is torpedoed off the coast of West Africa and sinks killing 1649 people September 14–16 – WWII Battle of Ioribaiwa Australian forces (some 3000 men) under Major-General Selwyn Porter are forced to withdraw to Imita Ridge due to supply problems September 15 – WWII The Women's Flying Training Detachment (WFTD) is established in the United States September 24 – WWII Andrée Borrel and Lise de Baissac become the first female SOE agents to be parachuted into occupied France September 26 – The Holocaust Nazi official August Frank issues the August Frank memorandum setting out how the belongings of "evacuated" (ie murdered) Jews are to be disposed of September 27 – WWII Both the commerce raiding German auxiliary cruiser Stier and American Liberty ship sink following a gun battle in the South Atlantic Hilfskreuzer Stier is the only commerce raider to be sunk by a defensively equipped merchant ship