command post, general headquarters, GHQ - military headquarters from which a military commander controls and organizes the forces

guardhouse - a military facility that serves as the headquarters for military police and in which military prisoners can be detained

military installation - any facility servicing military forces

plural, plural form - the form of a word that is used to denote more than one

armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"