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Military branch (also service branch or armed service) is according to common standard the subdivision of the national armed forces of a sovereign nation or state.
Certain countries may have military service branches beyond the four domain-specific service branches. Some examples:
The Canadian Armed Forces is the unified armed forces of Canada. While it has three environmental commands - namely the Canadian Army, Royal Canadian Navy, and Royal Canadian Air Force - it remains a single military service.
Branch of service (also branch of military service or branch of armed service) refers, according to NATO standards, to a branch, employment of combined forces or parts of a service, below the level of service, military serviced or armed service.
- MILITÄRISCHES STUDIENGLOSAR ENGLISCH Teil I, A – K, Bundessprachenamt (Stand Januar 2001), page 226, definition: branch of service.