"Government-sponsored international radio broadcasting has been an important public diplomacy tool since shortwave frequencies were first used in the 1920s. This chapter defines international radio broadcasting as "the purposeful attempts on the part of stations in one country to reach listeners in other countries" [...] Governments have used these stations to promote a country's messages, whether propagandistic or informational [...] This chapter focuses on how governments around the world have used international broadcasting to reach global audiences, and how changes in technology have influenced these broadcasts. Before examining the current state of international radio broadcasting it is important to take a historical perspective to understand how government sponsored international radio broadcasting has developed." (Page 3)