Propaganda is a form of communication aimed at influencing the attitudes and opinions of a population. It often employs biased or misleading information to promote a particular agenda, ideology, or viewpoint. Governments, organizations, and individuals use propaganda to shape public perception and behavior, especially during times of conflict or political change. The techniques of propaganda can include emotional appeals, selective presentation of facts, and the use of symbols. Historical examples, such as Nazi Germany and Soviet Union, illustrate how propaganda can be used to control narratives and mobilize support for various causes, often at the expense of truth and transparency.