{
  "name": "Known then: Gamelin on 10 May 1940",
  "desc": "Known then: card for General Gamelin's decision of 10 May 1940 on the advance into Belgium; each item carries its source number from the article.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Treaties & Tradeoffs",
  "url": "https://treatiesandtradeoffs.com/patterns/maginot-line/",
  "from": [],
  "how": "",
  "data_by": [
    "Locarno treaty, 16 October 1925, text at the Avalon Project, accessed 2026-11-02, official treaty text, public domain; Michaël Seramour (2007) and Max Schiavon (2011), Revue historique des armées, OpenEdition, accessed 2026-11-02, facts paraphrased, copyright the publisher, all rights reserved"
  ]
}