ORBAT — Order of Battle — is a structured accounting of a military force’s composition, organization, and disposition. It answers the essential intelligence questions: what units exist, how are they organized, where are they, and what can they do? What It Is An ORBAT is both a document and an analytical framework. At its most basic, it is a hierarchical list: army groups contain armies, armies contain corps, corps contain divisions, divisions contain brigades, brigades contain battalions, and so on.