appropriate words to link the Decision to its purpose may be such as
"to assist in" or "preparatory to".

The statement of this purpose, in connection with the Decision, is
frequently helpful and is sometimes necessary in making clear the
exact relationship between the Decision and the motivating task. In
the next planning step, where the detailed operations are determined,
this purpose is an important guide because each detailed operation is
expected to contribute to the accomplishment, not only of the
Decision, but also of the motivating task.

Corollaries to the Decision. The Decision may involve certain
deductions or inferences, either delimiting or amplifying its nature.
The commander may find it desirable to make note of these matters in
connection with his Decision. He may later wish to use these notes
when formulating his plan. Since these matters relate to deductions or
inferences which naturally follow as results of the Decision they are
properly referred to as "corollaries" to the Decision.

The nature of such corollaries may best be shown by an example. It is
supposed, for instance, that the commander has made the Decision "to
guard the Eastern Caribbean barrier against enemy penetration". During
the course of his estimate of the situation, he has come to the
conclusion that his operations to carry out this Decision will extend
into the area limited by Port X on the north, and Port Y on the south.
This conclusion is a deduction, which immediately assumes importance
when the Decision is made. The commander states this deduced
conclusion here, in connection with the Decision, for future guidance
in resolving the Decision into detailed operations, as well as for
later use in his directives to limit the action of his subordinates.

No particular form is specified for such corollaries. It is
satisfactory to list them as Corollary I, Corollary II, etc. They do
not constitute a part of the Decision.

Relation of the Decision to the Detailed Plan and Directives. The
Decision is the basis for the commander's plan of action for his
entire force. This plan is promulgated in one or more directives. The
Decision, as it appears in the Estimate, is not yet the concern of
subordinate commanders. It does not become their concern until it is
used in directives. As incorporated in the commander's detailed plan
and in his directives, the Decision, whether further developed or not,
constitutes the commander's general plan