According to the "Navy Data '' reference website operated by the U.S. Navy: "The term BRAVO ZULU originates from the Allied Tactical Publication 1 (ATP 1), an Allied military maritime tactical signals publication, which in the aggregate is For Official Use Only, and can also be found in Multinational Maritime Tactical Publication 2 (MTP 2). Signals are sent as letters and / or numbers, which have meanings by themselves sometimes or in certain combinations. A single table in ATP 1 is called ' governing groups, ' that is, the entire signal that follows the governing group is to be performed according to the ' governor. ' The letter ' B ' indicates this table, and the second letter (A through Z) gives more specific information. For example, ' BA ' might mean ' You have permission to... ' (do whatever the rest of the flashing light, flag hoist or radio transmission says). ' BZ ' happens to be the last item of the governing groups table and it means ' well done '. ''
where does the term bravo zulu come from
the Allied Tactical Publication 1 (ATP 1), an Allied military maritime tactical signals publication