You're wrong actually. Taken from linked Wikipedia page:
"In the official version of the alphabet,[1] the non-English spellings Alfa and Juliett are used. Alfa is spelled with an f as it is in most European languages because the English and French spelling alpha would not be pronounced properly by native speakers of some other languages – who may not know that ph should be pronounced as f. Juliett is spelled with a tt for French speakers, because they may otherwise treat a single final t as silent. Some published versions incorrectly list "alpha" and "juliet" – presumably because of the use of spell checker software – but those spellings are never correct and should be changed back to "alfa" and "juliett" wherever such mistakes are found."

ouch