NB: The definitions below are for words, or technical vocabulary, specific to Military Air Environment use.
Where a word appears in the Oxford English Dictionary (OED), the definition below is specific only to the
associated context and OED definitions should be used in all other usages.




TermAbbreviation
Chapter Reference
Permanent Joint HeadquartersPJHQ

Description
Commanded by the Chief of Joint Operations (CJO), the PJHQ's primary role is to be responsible for planning and
executing Joint, potentially Joint, and UK-led multi-national operations, and for exercising Operational Command
of UK Forces assigned to combined and multi-national operations led by others
(http://jchq.chots.mod.uk/pjhq_web/).