Army Group

Army groups are massive units that are the equivalent in size to medium/large-sized theatres. Army groups are the largest independant field units in the ZXA, and contain two or more field armies. Army groups are wartime only ranks, as they are led by field marshals.

Structure
Army groups contain two or more field armies each, and a general command staff. A general command staff (which differs from a senior staff and its lieutenant colonels and colonels, and a junior staff and its captains and majors) contains a standard-form command staff and operations staff with higher-ranking officers.

The command staff contains the officer commanding (a field marshal), who is in charge of the army group. The second in command (a general), who is the assistant of the officer commanding. The signals officer (a colonel), who is in charge of all members from the ZXSC (ZX Signals Corps) in the army group. The intelligence officer (a colonel), who is in charge of all ZXIC (ZX Intelligence Corps) members in the army group except for the operations officer. The medical officer (a brigadier general), who is in charge of all ZXMSC (ZX Medical Service Corps) members in the army group. The administrative officer (a brigadier general), who is in charge of the army group's administration and ZXAC (ZX Administrative Corps) members. Lastly is the operations officer (a major general), who is in charge of planning operations with the officer commanding, second in command and intelligence officer.

Role
An army group is a massive unit that is used only in war times, to occupy medium to large-sized theatres, and act as the main components of larger theatres. Army groups are named by taking the first four letters of a cardinal direction, and adding AG (army group) to the end of it. For example, an army group in a northern theatre would be NORTHAG.

Integration
Essentially, army groups are the army components of a theatre, usually controlling all army units in the theatre. An army group itself will contain any number of field armies. Army groups are rather rare and are only ever used during wartime.