Mitsubishi Ki-51 Sonia in Indonesian Service First flying in mid-1939, the Mitsubishi Ki-51 was a light bomber/dive bomber used by the Imperial Japanese Army. Initially deployed in China, it proved effective because of the limited aerial opposition. When faced with more advanced fighters later in the war, it proved more vulnerable. A total of 2,372 … Continue reading "Mitsubishi Ki-51 Sonia in Indonesian Service"