Diplomatic staff and Foreign service

Foreign service and diplomatic staff are semantically related. in office for foreign relations topic. In some cases you can use "Foreign service" instead a noun phrase "Diplomatic staff".

Foreign service noun - The part of the State Department that supplies diplomats for the United States embassies and consulates around the world.

Diplomatic staff and foreign service are semantically related. You can use "Diplomatic staff" instead a noun phrase "Foreign service".