General military science covers common areas across all military fields. This ranges from the theoretical—such as history and philosophy—to the practical—such as tactics, strategy, logistics and training.
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.
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.