original question: Which collection category's parent category is [Military branch]?
answer: military insignia, helmet, weapon...
answer type: Collection category.
auxiliary information: Military branch is according to common standard the subdivision of the national armed forces of a sovereign nation or state. In classical NATO terminology, the three basic military branches are the Army, Air Force, and Navy. Army, Burkina Faso Navy, R.O.C. Air Force, USA
[Military branch] is the parent category of which collection category?