This primary source comes from the Collection FDR-MR: Papers as President, Map Room File.
National Archives Identifier:
194867Full Citation: Franklin D. Roosevelt to Winston Churchill; 12/8/1941; Collection FDR-MR: Papers as President, Map Room File. [Online Version, https://docsteach.org/documents/document/franklin-d-roosevelt-to-winston-churchill, April 29, 2024]