Question: Fox is a brevity code used by NATO pilots to signal the simulated or actual release of an air-to-air munition or other combat function,  'Fox' is short for 'foxtrot', the phonetic designation for the letter 'F', which is short for 'fire', the International Radiotelephony Spelling Alphabet, commonly known as the ICAO phonetic alphabet, sometimes called ?
Context: The Greek spelling alphabet is a spelling alphabet (or "phonetic alphabet") for Greek, i.e. a set of names given to the alphabet letters for the purpose of spelling out words.  It is used mostly on radio voice channels by the Greek army, the navy and the police. The Japanese radiotelephony alphabet (和文通話表 , wabuntsūwahyō , literally "Japanese character telecommunication chart") is a radiotelephony spelling alphabet, similar in purpose to the NATO/ICAO radiotelephony alphabet, but designed to communicate Japanese kana rather than Latin letters.  The alphabet was sponsored by the now-defunct Ministry for Posts and Telecommunications. The International Radiotelephony Spelling Alphabet, commonly known as the ICAO phonetic alphabet, sometimes called the NATO phonetic alphabet or spelling alphabet and the ITU radiotelephonic or phonetic alphabet, is the most widely used radiotelephonic spelling alphabet.  Although often called "phonetic alphabets", spelling alphabets are unrelated to phonetic transcription systems such as the International Phonetic Alphabet.  Instead, the International Civil Aviation Organization (ICAO) alphabet assigned codewords acrophonically to the letters of the English alphabet, so that critical combinations of letters and numbers are most likely to be pronounced and understood by those who exchange voice messages by radio or telephone, regardless of language differences or the quality of the communication channel. The Joint Army/Navy Phonetic Alphabet was a radio alphabet developed in 1941 during World War II and was used by all branches of the United States Armed Forces until the promulgation of the ICAO spelling alphabet (Alfa, Bravo) in 1956, which replaced it.  Before the Joint Army/Navy (JAN) phonetic alphabet, each branch of the armed forces used its own radio alphabet, leading to difficulties in interbranch communication. The Phonetic Symbol Guide is a book by Geoffrey Pullum and William Ladusaw that explains the histories and uses of symbols used in various phonetic transcription conventions.  It was published in 1986, with a second edition in 1996, by the University of Chicago Press.  Symbols include letters and diacritics of the International Phonetic Alphabet and Americanist phonetic notation, though not of the Uralic Phonetic Alphabet.  The "Guide" was consulted by the International Phonetic Association when they established names and numerical codes for the International Phonetic Alphabet and was the basis for the characters of the TIPA set of phonetic fonts. Fox is a brevity code used by NATO pilots to signal the simulated or actual release of an air-to-air munition or other combat function.  Army aviation elements may use a different nomenclature, as the nature of helicopter-fired weapons is almost always air-to-surface.  'Fox' is short for 'foxtrot', the phonetic designation for the letter 'F', which is short for 'fire'.  The radio call announcing that a weapon has been fired is intended to help avoid friendly fire, cueing other pilots to ensure that they do not maneuver into the path of harm. Americanist phonetic notation, also known as the North American Phonetic Alphabet or NAPA, is a system of phonetic notation originally developed by European and American anthropologists and language scientists (students of Neogrammarians) for the phonetic and phonemic transcription of indigenous languages of the Americas and for languages of Europe.  It is still commonly used by linguists working on, among others, Slavic, Uralic, Semitic languages and for the languages of the Caucasus and of India (however, Uralists commonly use a variant known as the Uralic Phonetic Alphabet).  The term "Americanist phonetic alphabet" is misleading because it has always been widely used outside the Americas.  For example, a version of it is the standard for the transcription of Arabic in articles published in the "Zeitschrift der Deutschen Morgenländischen Gesellschaft", the journal of the German Oriental Society. The Russian spelling alphabet is a spelling alphabet (or "phonetic alphabet") for Russian, "i.e." a set of names given to the alphabet letters for the purpose of spelling out words.  It is used by the Russian army, navy and the police. The RAF radiotelephony spelling alphabet was used by the British Royal Air Force (RAF) to aid communication after the take-up of radio, especially to spell out aircraft identification letters, e.g. "H-Harry", "G for George" etc.  Several alphabets were used, before being superseded by the adoption of the NATO/ICAO radiotelephony alphabet.  While sometimes referred to as the "RAF Phonetic Alphabet", it is a spelling alphabet rather than a true phonetic alphabet. The LAPD radio alphabet is a spelling alphabet, similar to the ICAO radiotelephony alphabet, that is used by the Los Angeles Police Department (LAPD) and other local and state law enforcement agencies across the state of California and elsewhere in the United States.  It is the "over the air" communication used for properly understanding a broadcast of letters in the form of easily understood words.  Despite often being called a "phonetic alphabet", it is not a phonetic alphabet in for transcribing phonetics.
Answer: NATO phonetic alphabet