Artillery distribution also played a significant part. For front-line situations artillery could do the job better than planes, without risking aircraft in a quasi-combat operation. Leaflet bombs of considerable scope appeared, and could be made to fit almost any appropriate weapon. Circulation was also effected by means of clandestine operations to friendly civilians, frequently combined with air-drop of weapons, medicine, and other essentials.
The organization of all these new functions has changed military organization. A whole new series of units were attached in echelon, each fitted to the appropriate level for its work. The rear-area functions and strategic propaganda work always required a considerable proportion of civilian aid, since some of the best workers in this line were persons who either did not wish to join the Army or whom the Army did not wish to have join it. These psychological warfare organizations were unbelievably cheap, even if measured by the most conservative estimates of their success. It is impossible that the army of the future, whether American or foreign, will overlook this source of assistance. Psychological warfare nowhere replaced combat, but it made the impact of combat on the enemy more effective.
With most military planning, it is feasible to work from the top down, define the strategic objective and then work out the actual requirements of the operation in advance. This is not true of psychological warfare.[39] The objectives may be defined, and in the process of definition the general needs of a propaganda agency may be clarified. If a plan calls for a press or a radio, somebody can requisition a Davidson Press or a Hallicrafter radio and get ready to use it. But the plan cannot define goals, set time limits for the achievement of the goals, relate the goals to one another in a scheduled pre-fixed program of success, establish terms whereby psychological victory can be told from psychological defeat.
Psychological victory exists only in terms of the military victory which it is designed to assist. Psychological defeat, no matter how much critics or the enemy propagandist may allege it, can be proved to exist only when an actual defeat makes it real. Psychological plans are always contingency plans for the assistance of military operations. They are dependent on the military operation and they cannot be checked against fact except in terms of the military operations they ostensibly support.