| 1885: | The Chinese Kuomintang Army trained their Sabumin special warriors in the martial arts of kung-fu and Korean Taikwando which used a partial encrypted language known only to themselves. |
| 1921: | The Japanese Imperial Army's Chuo Tokujo Bu were able to crack part of the Mingma Encryption Code. This was originally based around the Bifid encryption method. |
| 1928: | The Japanese Imperial Army's decryption specialists were able to decypher only a small portion, but enough to figure out Chian Kai-Shek's Northern Army movements and stay one step ahead of the enemy. |
| 1937: | The Japanese Imperial Army's Chuo Tokujo Bu were able to successfully decrypt about 80% of the Chinese Mingma Code. |
| 1938: | The Chinese changed their code from Mingma (based around the Bifid method) to the Trifid method and stumped the Japanese Chuo Tokujyo Bu for a while. The Japanese called this Trifid method the "Tokushu Dai Hon". |
| 1940: | The Chuo Tokujyo Bu were able to read the Tokushu Daihon method with about 75% accuracy. General Isogai and Colonel Ishihara of the Japanese Imperial Army's COMINT were able to successfully decypher most of the Chinese code. |
