He used his experiences in the war to write the book "Psychological Warfare" (1948), which is regarded by many in the field as a classic text.
It is regarded by many in the field as a classic text. He used his experiences in the war to write the book "Psychological Warfare" (1948).
He used his experiences in the war to write the book "Psychological Warfare" (1948). It is regarded by many in the field as a classic text.
He used his experiences in the war to write the book "Psychological Warfare" (1948). It is regarded by many in the field as a classic text.