The use of arguments containing increasingly technical materials has grown significantly in the recent years. Specifically, arguments that are used to justify military expenditures or to allege violations of international agreements are becoming more sophisticated. This study examines the dissemination and use of technical argument in claims made by the United States government that the Soviet Union violated chemical and biological treaties in Southeast Asia and Afghanistan. This study employs the Jowett-O'Donnell method for analyzing propaganda to determine the extent and effectiveness of the government's claims. The study concludes that propaganda was used extensively by the government in order to justify new weapons programs and that the propaganda campaign was effective because of the technological orientation of its claims.