Put an American warning beside the developing Japanese plan
Establish separate chains of action, explicitly align their dates or intervals, and compare what different participants are doing or understanding about the same consequential question.

At Dawn We Slept
Gordon W. Prange & Donald M. Goldstein & Katherine V. Dillon · 19 weeksPut an American warning beside the developing Japanese plan
SHORT SOURCE EXCERPT“How closely interwoven were the American and Japanese threads of the Pearl Harbor fabric!”
After following American readiness concerns, the account pauses to align Richardson's and Knox's documents with Yamamoto's letters and meeting. The paragraph uses qualified intervals rather than pretending every date is equally certain.
The comparison lets the reader see recognition of a possible attack alongside preparation for that attack. The next paragraph complicates the pattern with a later American dismissal of the warning.
The source in context.
Richardson's dispute over keeping the Fleet in Hawaii brings readiness concerns into conflict with presidential policy. The chronology then aligns American warnings and Japanese planning before his removal from command.
Open this chapterWhat this example supports
The comparison lets the reader see recognition of a possible attack alongside preparation for that attack. The next paragraph complicates the pattern with a later American dismissal of the warning.
Its limit
This is the authors' selected chronological alignment. It does not demonstrate communication between the separate planners or establish what a different American response would have achieved.
Source & edition
Gordon W. Prange, in collaboration with Donald M. Goldstein and Katherine V. Dillon, At Dawn We Slept, supplied Penguin text with 1991 afterword.
Supplied text, lines 1024–1044. The short quotation is checked against the source.
Read the existing whole-source synthesis and all 24 ordered segment summaries, section maps, qualifications and gap reports. Checked all 81 numbered body headings against the contents, their source ranges, opening orientation and closing text, distinguishing photograph-caption inserts from narrative endings; checked the main ending and the separate afterword and source-apparatus boundaries. Read the complete retained example passages and their surrounding arguments, plus title-page, imprint and editorial-role disclosures. Verified all 24 consecutive segment source-input hashes and successful receipts. This is a source-checked editorial review using the prior machine reading, not a new second full-book reading, an independent model review or a historical fact audit.
Supplied Penguin text of the 1981 work, with the 1991 afterword; ISBN 9781101664216. The digital file's publication date is not independently established.