Angelo Del Boca, The Ethiopian War 1935–1941 (1965), cites a 1945 memorandum from Ethiopia to the Conference of Prime Ministers, which tallies 760,300 natives dead; of them, battle deaths: 275,000, hunger among refugees: 300,000, patriots killed during occupation: 75,000, concentration camps: 35,000, Feb. 1937 massacre: 30,000, executions: 24,000, civilians killed by air force: 17,800.[7]Secondary Wars and Atrocities of the Twentieth Century