It depends on which war you're referring to. I feel that the answer you're looking for is the radio, though.
The Beer Hall Putsch, also known as the Munich Putsch, was a failed coup d'état by Nazi Party (Nationalsozialistische Deutsche Arbeiterpartei or NSDAP) leader Adolf Hitler, Generalquartiermeister Erich Ludendorff and other Kampfbund leaders in Munich, Bavaria, on 8–9 November 1923, during the Weimar Republic.
Answer: B: to end the practice of slavery
Explanation:
Answer: inspiring nationalistic feelings among Indians who opposed rule
Explanation: