Command post and Main office

Command post noun - The place from which a commander runs operations.

Main office and command post are semantically related In some cases you can use "Main office" instead a noun phrase "Command post".

Main office noun - (usually plural) the office that serves as the administrative center of an enterprise.

Command post and main office are semantically related in center of operations topic. You can use "Command post" instead a noun phrase "Main office".