Essential Matters: A History of the Cryptographic Branch of the People's Army of Viet-Nam, 1945-1975

Chapter 5. The Army Cryptographic Branch Expands in Every Aspect; Widespread Use of the KTB Technique; Participating in the Discharge of Duties in the New Stage of the Revolution (1955–1965)

The war of resistance against the French colonialist aggressors ended in victory. Along with the entire military, the army cryptographic branch entered a new period of development, a period of building a revolutionary army, advancing gradually, step by step, into becoming regular and modern. In accordance with duty requirements, during this period the army cryptographic branch had to ensure service to guidance and command in the new conditions according to modern operational procedures, while at the same time building the branch, to progress toward becoming ...