Answer:
Extraordinarily important
Explanation:
We can infer that the information in the wireless message was extraordinarily important because of the fact that Montgomery and Gred hurried to fetch Admiral Hall in order to deliver the message (An indication that they had deciphered it), and from the line that goes "as he tries to assess the impact of he was reading" which is also a sign of the significance of the message.
Dialogue. He briefly explained everything he saw.
The suffix in the word "enactment" is "-ment".
-ment as a suffix refers to the process of doing what the stem means. Its origin is in the Latin language, and it came to English through French:)
