Sample Outline Form. For convenient reference, the outline form of an Operation Plan is appended (see page 219). The Operation Order follows the same form, the essential difference being that the Operation Order makes no provision for assumptions, and is effective upon receipt unless otherwise provided in the body of the Order. Types of Naval Directives Naval directives in common use are: War Plans, Campaign Plans, Operation Plans, Operation Orders, Battle Plans, and Battle Orders. Basic War Plans designate operating forces, assign broad strategical tasks to these forces, and, where required, delimit theaters of operations. These plans also assign duties to the supporting services such as naval communications, etc. Requirements as to logistics plans are also included. Accepted usage designates, as Contributory Plans, the subsidiary plans which are prepared in support of Basic War Plans. Campaign Plans. A campaign, as initially visualized, is a clearly defined major stage of a war. A campaign, after it has passed into history, sometimes bears the name of a leader, or a seasonal or geographical designation. It may consist of a single operation, or of successive or concurrent operations. The operations of a campaign have properly a definite objective, the attainment or abandonment of which marks the end of the campaign. (See also page 37, as to operations.) A Campaign Plan indicates what might be called the "schedule of strategy" which the commander intends to employ to attain his ultimate objective for the campaign. Such a plan usually sets forth the stages into which he proposes to divide the campaign, shows their sequence, and outlines: (a) The general plan for the entire campaign. (b) The general plan involved in each stage and the order of accomplishment, so far as the commander has been able to project his action into the future, and usually, (c) The forces to be made available for the first stage. The Campaign Plan is primarily for the guidance of the commander himself. When necessary for information or approval, it is forwarded to higher authority. To provide the necessary background, it may sometimes be furnished to the principal subordinates. In any case, the interests of secrecy demand that its distribution be extremely limited. Operation Plans. An Operation Plan may cover projected operations, or may be contingent upon the occurrence of a particular event, or combination of events. It may be issued in advance of the event. It is placed in effect at a specified time or by special order, as prescribed in the body of the plan itself. It provides for either a single operation, or for a connected series of operations to be carried out simultaneously or in successive steps. It is prepared for dissemination to task-force commanders.