NATO phonetic alphabet by those who exchange voice messages by radio or telephone, regardless of language differences or the quality of the communication channel. The 26 code words in the NATO phonetic alphabet are assigned to the 26 letters of the English alphabet in alphabetical order as follows: , Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, , Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu. Strict adherence to the prescribed spelling words is required in order to avoid the problems of confusion that the spelling alphabet is designed to overcome. As noted in a
NATO phonetic alphabet to modify a few words based on U.S. Air Force research. After all of the above study, only the five words representing the letters C, M, N, U, and X were replaced. The ICAO sent a recording of the new "Radiotelephony Spelling Alphabet" to all member states in November 1955. The final version given in the table above was implemented by the ICAO on , and the ITU adopted it no later than 1959 when they mandated its usage via their official publication, "Radio Regulations". Because the ITU governs all international radio communications, it was also adopted by most radio