Subclass U: General military science
Subclass UB: Military administration
Military administration covers the bureaucratic and policy aspects of the military; from recruitment and muster rolls, to minorities. This portal also includes indirect means or warfare such as intelligence, sabotage and propaganda.
Child portal: Conscription
Subclass UC: Maintenance and transportation
Maintenance and transportation covers military equipment, storage and supply; as well as general transportation, including horses and mules. This portal also covers areas like barracks and clothing.
Infantry is the branch of the army that fights on foot.
Cavalry is the branch of the army that fights on horses.
Artillery is large weaponry, such as cannons and mortars, usually operated by a crew rather than a single individual. This portal covers training, use, ordnance and ballistics.
Subclass UG: Military engineering
Military engineering is the work of designing and building military works and maintaining
lines of military transport and communications. This covers the construction and destruction of structures like bridges, tunnels and fortifications; including the art of siege warfare. Also covered by this portal are signalling, lighting and armoured fighting vehicles.
Child portal: United States Army Corps of Engineers
Air forces are the air based branches of the armed forces of many nations, sometimes referred to as "air armies". This portal also covers military astronautics, or space warfare.
Child portal: United States Air Force
Subclass UH: Other military services