Wars among nations – particularly the great wars in the 20th century, have brought massive destruction of societies. A nation at war has only one goal of fighting against the enemy. In this context the role of radio becomes all the more important. Radio news, commentary, announcements and war music are commodities in high demand by a society at war. Radio services have been fully exploited by countries at war. The quickest source of telling people what to do, where to move and what instruction they must follow have always come from radio. All important addresses by head of government to people are done on radio.