GHQ vs command post

GHQ and command post both are nouns.

Word	Noun	Adjective	Verb	Adverb
GHQ	Yes	No	No	No
command post	Yes	No	No	No

As nouns, GHQ and command post are synonyms defined as:

GHQ and command post: military headquarters from which a military commander controls and organizes the forces

Other synonyms of GHQ include general headquarters.

GHQ (noun)	command post (noun)
military headquarters from which a military commander controls and organizes the forces	military headquarters from which a military commander controls and organizes the forces