Zhang was a Chinese warlord who became ruler of Manchuria with the tacit support of the Japanese after his militia backed them in the Russo-Japanese War in 1904–05. By the mid-1920s, his Fengtien army had gained power in Beijing, but Chiang Kai-shek and the Chinese Nationalists forced him out in 1928, and the Japanese began to doubt his authority over his Chinese countrymen. He was assassinated during his retreat to Shenyang when his train was bombed. Who planted the bomb, and why? Discuss
Source: The Free Dictionary