Category hierarchies

For a list of all categories, see Special:Categories.

These are the top level categories:

• Units arranges units by type.
• Places arranges pages geographically.
• Sources is about documents you can use or that need linking to units.
• To do lists pages that give details of things that need doing, and sub-categories of pages that need specific improvements.
• Help pages give more information about how to use the site.

Units and Countries

Category:Units has the sub-categories which contain definition pages for each type of unit:

• Category:Type definitions for general types (eg Infantry) used as values in the type field of {{infobox military unit}}
• Category:Specific type definitions for specific types (eg Infantry battalion) used as values in the specific_type field of {{infobox military unit}}

There is also a category for each general type, eg Category:Infantry units.

Category:All units lists every unit that has a page. This is mainly used to keep track of how many units have pages. It can also be used to export all unit pages via Special:Export.

Units are also categorised by the type of unit and the country they came from. The lower levels of these category hierarchies vary according to the size of the army, and there are a few special cases: see the sub-headings below.

Large armies

These currently include:

• American
• British
• French

India is mostly similar but has some differences, see below.

Each army should have a category (eg Category:British Army) that contains general pages about that army and more specific sub-categories for unit pages. No unit pages should be put directly in the army category. As well as more specific sub-categories, there is a category for all units of that army (eg Category:All British Army units).

The more specific categories for units are mostly a combination of country and specific unit type (eg Category:British infantry battalions). These categories are below two hierarchies, one arranged by unit types, the other by countries and services:

Units	Places
	Countries
Infantry units	United Kingdom
	British Army
British infantry battalions

Sometimes there can be an extra intermediate level to accomodate odd units that don't fit in more specific categories. For example, Category:British machine gun units.

Sometimes there are more categories below the specific category at the bottom of the above table. These contain subsets of their parent category, but unit pages will appear at both levels. eg 1st Battalion Rifle Brigade, UK is a direct member of both Category:British infantry battalions and Category:British rifle battalions.

Medium armies

These currently include:

• Australian
• Canadian
• New Zealand
• Portugese

Each army's main category (eg Category:Australian Army) directly contains:

• every unit page for that army
• general pages about that army
• more specific sub-categories for unit pages

The more specific sub-categories can combine either general type or specific type with the country.

For example, infantry battalions tend to be treated in a similar way to large armies:

Units	Places
	Countries
Infantry units	Australia
	Australian Army
Australian infantry battalions

Other types of units are often in categories based on general type because there aren't as many of them. For example:

Units	Places
	Countries
Medical units	Australia
	Australian Army
Australian medical units

Australia also has extra categories just for the AIF: see Category:Australian Imperial Force.

Small armies

These currently include all parts of the British Empire except Australia, Canada, India, New Zealand, South Africa and the United Kingdom.

These don't usually have a category for the army or a category combining country and type. All units go directly under the country category, eg Category:Nigeria.

Category:British Empire has sub-categories based on types, eg Category:British colonial infantry battalions.

Special cases

India

Mostly treated as a large army, but doesn't use an army category because some units were separate from the Indian Army and because there was no navy. Specific sub-categories for Indian units should go directly under Category:India.

All Indian units, whether Indian Army or Imperial Service Troops, can also be found in Category:All Indian units.

South Africa

On the boundary between small and medium, and army units split between Union Defence Force and the Overseas Expeditionary Force. For these reasons, unit sub-categories should go directly under Category:South Africa.

Units and sources

Category:Units and sources is a child of both Category:Units and Category:Sources. It lists sub-categories that group units by what sources and media they have or need. Some of these sub-categories are also children of Category:Pages needing attention.