Getsometimein,
apparently it's gone full circle from ASW to USW (undersea warfare) and back to ASW again.
In times of financial constraint, I'm glad we got the small stuff sorted out, after all it didn't cost much to change all the docs to reflect our overseas 'special relations' changes in acronyms/abbreviations/initialisations.
(Pedants, please feel free to STFU about which of the aforementioned is correct.)