c. The Army air defense artillery fire unit is the key element for effective air
defense "in combat." It must have the capability to accomplish independently all the
following engagement functions.
(1). Detection of potential airborne targets.
(2). Identification of unknown flying objects.
(3). Interception of enemy aircraft.
(4). Destruction of the hostile air threat.
d. Air defense artillery is most effective when it operates under the doctrine of
centralized direction and decentralized execution. Control is exercised, primarily by
standing operating procedure (SOP); however, extensive communications are required
to permit timely response to command requirements and for exchange of operational
e. Air defense artillery weapons and concerted effort of organic automatic and
small-arms fire can provide local, limited protection for ground forces.
f. Certain air defense artillery missiles and automatic weapons have a surface-
to-surface capability. However, diversion from their primary role of air defense is
dependent on the air defense situation.
1-19. SIGNAL CORPS SUPPORT
Signal Corps units provide communications-electronics support for the US Army
forces in the field. Communications-electronics support embraces design,
development, installation, operation, and maintenance of electronic and
electromechanical systems associated with the collecting, transmitting, storing,
processing, recording, and displaying of data and information associated with all forms
of military communications, to exclude the responsibility for information and data
systems and equipment that has been otherwise assigned. Signal elements provide
communications to Army forces down to brigade level and to other commands as
required. This support is provided by electronic communications means and by
messenger. Organic communications personnel provide communications at combat
brigade and lower levels. The signal function also includes provision of photographic
support. Combat support photography includes still and motion picture services (except
and processing services for operational, technical, information, and intelligence