The plans of Fall Grün had a large role for psychological warfare, both within Czechoslovakia and against Czechoslovakia's allies. Internally, the Czechoslovak government and citizenship were supposed to be intimidated and have their will to defend themselves broken, and the ethnic German minority (which was largely pro-German and pro-Nazi), was supposed to internally weaken and disrupt the country.[1] Internationally, co-ordinated Nazi psychological and propaganda warfare aimed at making the country isolated to the point that it would stand alone against any aggression, with defence having no hope.[1] Modern media, especially radio, played key role in the Nazi psychological warfare.