This document is divided into three parts detailing German military symbols for the German Army, Air Force, and Navy. Sections include the following topics: basic symbols for headquarters, branches of service (arms and services), weapons and equipment, symbols denoting methods of transport, indication of units, supplementary symbols, abbreviations used with basic and tactical symbols, supplementary numerals, and a revised system of military symbols. Part B in the Army category describes the tactical symbols for higher headquarters, combat troops, services, service installations, and transport control. Part C contains special signs and symbols for obstacles and demolitions, river crossings and bridge building, defensive positions, tactical boundaries, map symbols, air-ground communications, and semiofficial auxiliary symbols. For the Air Force: basic symbols and branches of service (guns, installations, and services); supplementary letters and numerals; new system of basic symbols and composition of tactical symbols; tactical symbols for higher headquarters, combat troops, services, and service installations; and special symbols for situation maps (operational and tactical boundaries, reconnaissance/combat/defense activities, and suspected enemy aerial attack and air defense bases). Navy contains information on commanders and commands, ships and formations, defenses, and coast artillery (sea target and aircraft batteries, combat and battery posts, and naval artillery battalions).