How is Propoganda used in foreign policy?

How and when is porpoganda used in foreign policy? Propoganda is an instrument of policy that governments use to influence a particular group, therefore maiking that group think what they want them to think, do what they want them to do etc. Although the use of propoganda greatly increased during the twentieth century through the use of mass media (especialy through the invention of radio and television) it is not a new phenomenon. Propoganda earliest …showed first 75 words of 1939 total…

…showed last 75 words of 1939 total…