Die Oster/September-Verschwörung war ein geplanter Plan zur Absetzung Adolf Hitlers und des NS-Regimes, falls Deutschland mit der Tschechoslowakei wegen des Sudetenlandes in den Krieg ziehen sollte, und zur Wiederherstellung der Monarchie unter Prinz Wilhelm von Preußen.

The plot was organised and developed by then [Oberstleutnant](https://en.wikipedia.org/wiki/Oberstleutnant) [Hans Oster](https://en.wikipedia.org/wiki/Hans_Oster) and Major [Helmuth Groscurth](https://en.wikipedia.org/wiki/Helmuth_Groscurth) of the [Abwehr](https://en.wikipedia.org/wiki/Abwehr).[^([2])](https://en.wikipedia.org/wiki/Oster_conspiracy#cite_note-FOOTNOTEMueller2017-2) They drew into the conspiracy such people as [Generaloberst](https://en.wikipedia.org/wiki/Generaloberst) [Ludwig Beck](https://en.wikipedia.org/wiki/Ludwig_Beck), General [Wilhelm Adam](https://en.wikipedia.org/wiki/Wilhelm_Adam_(general)),[^([3])](https://en.wikipedia.org/wiki/Oster_conspiracy#cite_note-Enzensberger_2008-3) Generaloberst [Walther von Brauchitsch](https://en.wikipedia.org/wiki/Walther_von_Brauchitsch), Generaloberst [Franz Halder](https://en.wikipedia.org/wiki/Franz_Halder), [Admiral](https://en.wikipedia.org/wiki/Admiral_(Germany)#German_navies_until_1945) [Wilhelm Canaris](https://en.wikipedia.org/wiki/Wilhelm_Canaris), and [Generalleutnant](https://en.wikipedia.org/wiki/Generalleutnant) [Erwin von Witzleben](https://en.wikipedia.org/wiki/Erwin_von_Witzleben). The working plan was for Count [Hans-Jürgen von Blumenthal](https://en.wikipedia.org/wiki/Hans-J%C3%BCrgen_von_Blumenthal) to lead a storm party into the Reich Chancellery and kill Hitler. It would then be necessary to neutralize the Nazi Party apparatus in order to stop them from proceeding with the invasion of [Czechoslovakia](https://en.wikipedia.org/wiki/Czechoslovakia), which they believed would lead to a war that would ruin Germany.[^([4])](https://en.wikipedia.org/wiki/Oster_conspiracy#cite_note-FOOTNOTEJones2009-4)

In addition to these military figures, the conspirators also had contact with Secretary of State [Ernst von Weizsäcker](https://en.wikipedia.org/wiki/Ernst_von_Weizs%C3%A4cker) and the diplomats Theodor Kordt, [Erich Kordt](https://en.wikipedia.org/wiki/Erich_Kordt) and [Hans Bernd Gisevius](https://en.wikipedia.org/wiki/Hans_Bernd_Gisevius). Theodor Kordt was considered a vital contact with the British on whom the success of the plot depended; the conspirators needed strong British opposition to Hitler’s seizure of the Sudetenland. However, [Neville Chamberlain](https://en.wikipedia.org/wiki/Neville_Chamberlain), apprehensive of the possibility of war, negotiated at length with Hitler and [eventually conceded](https://en.wikipedia.org/wiki/Munich_Agreement) strategic areas of Czechoslovakia to him. Poland also invaded Czechoslovakia on 1 October 1938. This destroyed any chance of the plot succeeding, as Hitler was then seen in Germany as the “greatest statesman of all times at the moment of his greatest triumph”, and the immediate risk of war had been neutralized.[^([2])](https://en.wikipedia.org/wiki/Oster_conspiracy#cite_note-FOOTNOTEMueller2017-2)

[https://en.wikipedia.org/wiki/Oster_conspiracy](https://en.wikipedia.org/wiki/Oster_conspiracy)

it is noteworthy because a popular story goes that the german army only showed opposition  when the war went south. some of the names involved here should ring a bell