"On This Date in Cryptologic History" Calendar
1944: 9th Infantry Division of the Australian Army captured Japanese cryptographic library.
19 January 1944: The 9th Infantry Division of the Australian Army captured the entire cryptographic library of the Japanese Imperial Army's 20th Division in Sio, New Guinea, which clinched the mastery of the Imperial Army's codes and ciphers and helped to shorten the war in the Southwest Pacific Theater.
