TheCodeBreakers
secret Japanese system of cryptography. A variety of other cryptosystems
supplemented it. The War, Navy, and Foreign ministries shared the
superenciphered numerical HATO code for intercommunication. Each
ministry also had its own hierarchy of codes. The Foreign Office, for
example, employed four main systems, each for a specific level of
security, as well as some additional miscellaneous ones.
Meanwhile, the modern-style shoguns speared into defenseless China,
sank the American gunboat Panay, raped Nanking, molested American
hospitals and missions in China, and raged at American embargoes on
oil and steel scrap. It became increasingly evident that Nippon's march of
aggression would eventually collide with American rectitude. The
mounting curve of tension was matched by the rising output of the
American cryptanalytic agencies. A trickle of MAGIC in 1936 had become a
stream in 1940. Credit for this belongs largely to Major General Joseph
O
annaabi.ee 
