>>14422788 ob
The Zimmermann Telegram.
https://www.archives.gov/education/lessons/zimmermann#background
The Zimmermann Telegram had such an impact on American opinion that, according to David Kahn, author of The Codebreakers, "No other single cryptanalysis has had such enormous consequences." It is his opinion that "never before or since has so much turned upon the solution of a secret message.
1917
1918
DJT remarks re end of the war.
Origins.
Southern border.
Foreign enemies pre-war.
Hong Kong.
Pre-war.