Black propaganda

Black propaganda is a form of propaganda intended to create the impression that it was created by those it is supposed to discredit. Black propaganda contrasts with gray propaganda, which does not identify its source, as well as white propaganda, which does not disguise its origins at all. It is typically used to vilify or embarrass the enemy through misrepresentation.

The major characteristic of black propaganda is that the audience are not aware that someone is influencing them, and do not feel that they are being pushed in a certain direction. Black propaganda purports to emanate from a source other than the true source. This type of propaganda is associated with covert psychological operations. Sometimes the source is concealed or credited to a false authority and spreads lies, fabrications, and deceptions. Black propaganda is the "big lie", including all types of creative deceit. Black propaganda relies on the willingness of the receiver to accept the credibility of the source. If the creators or senders of the black propaganda message do not adequately understand their intended audience, the message may be misunderstood, seem suspect, or fail altogether.

Governments conduct black propaganda for a few reasons. By disguising their direct involvement, a government may be more likely to succeed in convincing an otherwise unbelieving target audience. There are also diplomatic reasons behind the use of black propaganda. Black propaganda is necessary to obfuscate a government's involvement in activities that may be detrimental to its foreign policies.

Benjamin Franklin created and circulated a fake supplement to a Boston newspaper that included letters on Indian atrocities and the treatment of American prisoners.

In the United Kingdom, the Political Warfare Executive operated a number of black propaganda radio stations. Gustav Siegfried Eins (GS1) was one of the first such stations—purporting to be a clandestine German station. The speaker, "Der Chef", purported to be a Nazi extremist, accusing Adolf Hitler and his henchmen of going soft. The station focused on alleged corruption and sexual improprieties of Nazi Party members.

Another example was the British radio station Soldatensender Calais, which purported to be a radio station for the Wehrmacht. Under the direction of Sefton Delmer, a British journalist who spoke perfect Berliner German, Soldatensender Calais and its associated shortwave station, Deutscher Kurzwellensender Atlantik, broadcast music, up-to-date sports scores, speeches of Adolf Hitler for "cover" and subtle propaganda.

Radio Deutschland was another radio station employed by the British during the war aimed and designed to undermine German morale and create tensions that would ultimately disrupt the German war effort. The station was broadcast on a frequency close on the radio dial to an actual German station. During the war most Germans actually believed that this station was in fact a German radio station and it even gained the recognition of Germany's propaganda chief Joseph Goebbels.

There were British black propaganda radio stations in most of the languages of occupied Europe as well as German and Italian. Most of these were based in the area around Bletchley Park and Woburn Abbey in Buckinghamshire and Bedfordshire respectively.