80,000). The report of the UK War Office listed military casualties of 335,706 killed or missing. In addition 265,000 civilians were killed or missing. The Soviet demographer Boris Urlanis estimated that included in total Romanian military deaths are 177,000 killed and died of wounds. According to a demographic study there were 430,000 indirect deaths in Romania due to wartime privations. A Russian historian in a 2004 handbook of human losses in the 20th century estimated 330,000 civilian dead (120,000 due to military activity, 10,000 as prisoners and 200,000 caused by famine and disease). Russian Empire According to the Soviet demographer Boris Urlanis the sources for Russian casualties are difficult to ascertain. Casualty figures, compiled from the field reports during the war, were published in 1925 by the Soviet Central Statistical office They put Russia's total losses at 775,400 dead and missing, 348,500 disabled and 3,343,900 POW. Those evacuated to the rear area were 1,425,000 sick and 2,844,500 wounded. Included in these figures are battle casualties of 7,036,087. (626,440 killed in action, 17,174 died of wounds, 228,838 missing, 3,409,433 held as prisoners of war and 2,754,202 wounded in action). Urlanis believes that the figures for those killed were considerably underestimated, because a large part of the reports were lost in retreats. Urlanis estimated the actual total military war dead at 1,811,000 (killed 1,200,000, died of wounds 240,000, gassed 11,000, died from disease 155,000, POW deaths 190,000, deaths due to accidents and other causes 15,000). A study by the Russian military historian G.F. Krivosheev estimated the total war dead at 2,254,369 (killed in action 1,200,000; missing and presumed dead 439,369; died of wounds 240,000, gassed 11,000, died from disease 155,000, POW deaths 190,000, deaths due to accidents and other causes 19,000). Wounded 3,749,000. POW 3,343,900. Total mobilized force 15,378,000. United States War Dept. figures for Russian casualties are: Total mobilized force 12,000,000. Total casualties 9,150,000 (including Killed and died 1,700,000, wounded 4,950,000, prisoners and missing 2,500,000). The UK War Office Based on a telegram from Petrograd to Copenhagen in December 1918 listed military casualties of 9,150,000 (including 1,700,000 killed, 1,450,000 disabled, 3,500,000 wounded and 2,500,000 POW). In 1924, the Soviet government in a reply to a questionnaire from the International Labour Office, an agency of the League of Nations, reported for Russia 15,070,000 men mobilized and 1,700,000 dead and missing in World War I. According to the Soviet demographer Boris Urlanis there