The claim that "Churchill produced data about German rearmament" is well-supported by historical evidence. Winston Churchill, as a backbench MP in the 1930s, repeatedly presented figures and data about German rearmament in House of Commons speeches and through parliamentary questions. Key evidence includes: 1. **House of Commons speech, 28 November 1934**: Churchill presented detailed estimates of German air force strength, citing figures for military aircraft (ranging from 600 to 1,100), air budget increases (from 43 million Reichsmarks in 1932-33 to 210 million in the current year), and the conversion of civil aircraft to military use. He explicitly framed this as data: "I will give the House what information I have." 2. **House of Commons speech, 19 March 1935** (Churchill Archives Centre): Churchill presented data about German aviation production, including population increases at factory towns like Dessau (home of Junkers works), the number of factories, and production methods. 3. **House of Commons speech, 24 October 1935**: Churchill cited the figure of "more than £800,000,000 sterling" being spent on German military preparations in the current year. 4. **Churchill's own account in *The Gathering Storm***: He described setting up "two separate lines of scrutiny" — one using German refugees who understood German budget presentation, and another using Sir Henry Strakosch's financial firm — to analyze German military expenditure, arriving independently at the figure of approximately £1 billion per year. He then used these figures in parliamentary questions, which Chancellor Neville Chamberlain confirmed were not excessive. The claim is accurate. Churchill did produce substantial data about German rearmament, drawing on multiple sources including government intelligence, private financial analysis, and publicly available German budget documents. Sources: Churchill Archives Centre, Cambridge (https://archives.chu.cam.ac.uk/education/churchill-era/exercises/appeasement/churchill-rearmament-and-appeasement/documents-a/a/); UK Parliament Historic Hansard, 28 November 1934 (https://api.parliament.uk/historic-hansard/commons/1934/nov/28/debate-on-the-address); TheyWorkForYou, House of Commons debate 24 October 1935 (https://www.theyworkforyou.com/debates/?id=1935-10-24a.357.0); Churchill, *The Gathering Storm* via Erenow (https://erenow.org/ww/the-gathering-storm/13.php)