 From March 1938 Blamey supplemented his income by making weekly broadcasts on international affairs on Melbourne radio station 3UZ under the pseudonym " the Sentinel " . Like the station 's general manager , Alfred Kemsley , Blamey felt that Australians were poorly informed about international affairs , and set about raising awareness of matters that he believed would soon impact them greatly . He was appalled at Nazi Germany 's persecution of Jews , and saw a clear and growing menace to world peace from Nazi Germany and the Empire of Japan . His 15 @-@ minute weekly talks continued until the end of September 1939 , by which time the war that he had warned was coming had started . 
