Basis of organization the division, a self-contained unit composed of
all necessary arms and services.

Coast Artillery:
(1) Permanent fortifications for defense against naval attack.
(2) Semi-permanent fortifications for protection of permanent from
raiders.
(3) Organization of mobile troops to prevent landing of enemy.


MILITARY INFORMATION.

Essential:
(1) To enable War Department to estimate equipment and size of force
necessary.
(2) To enable commander properly to estimate the situation in the
field of operations.


TRANSMISSION OF INFORMATION.

Wire, Signaling, Radio and Messenger:
Message.--Concise, written information sent by messenger or wire.
Source always given.--"Heard" separated from "seen."
Report.--Formal account of some enterprise.
War Diary.--Record of events kept in campaigns.
Maps.

Reconnaissance:
The work of individuals or units in gathering information.