Vallance articulated his concept of counterinsurgency research more thoroughly with a 1964 article in "American Psychologist", co-written with SORO colleague Dr. Charles Windle. "Psychological operations," they write, "include, of course, the relatively traditional use of mass media. In the cold war these operations are directed toward friendly and neutral as well as enemy countries. In addition, there is growing recognition of the possibility and desirability of using other means such as military movements, policy statements, economic transactions, and developmental assistance for psychological impact." The article also promoted "civic action" operations: "military programs, usually by indigenous forces and often aided by United States materiel and advice, to promote economic and social development and civilian good will in order to achieve political stability or a more favorable environment for the military forces."