Secrecy is the most powerful weapon in the world. All countries depend on it. However, the secrecy provided depends on the strength of the cipher.
Enigma answer is not included because it is revealed when the message is entered into Enigma. It only takes several minutes to enter the entire message.
Vigenere Square Answer:
The study of secrecy is fascinating. Codes have been used all throughout history and are still heavily used today.