World War II casualties of the Soviet Union


World War II losses of the Soviet Union from all related causes were about 27,000,000 both civilian and military, although exact figures are disputed. A figure of 20 million was considered official during the Soviet era. The post-Soviet government of Russia puts the Soviet war losses at 26.6 million, on the basis of the 1993 study by the Russian Academy of Sciences, including people dying as a result of effects of the war. This includes 8,668,400 military deaths as calculated by the Russian Ministry of Defense.
The figures published by the Ministry of Defense have been accepted by most historians outside Russia. However, the official figure of 8.7 million military deaths has been disputed by Russian scholars who believe that the number of dead and missing POWs is not correct and new research is necessary to determine actual losses. Officials at the Russian Central Defense Ministry Archive maintain that their database lists the names of roughly 14 million dead and missing service personnel. Russian President Dmitry Medvedev stated in 2009 that "data about our losses haven't been revealed yet...We must determine the historical truth." He added that more than 2.4 million people are still officially considered missing in action, of the 9.5 million persons buried in mass graves, six million are unidentified. Some Russian scholars put the total number of losses in the war, both civilian and military, at over 40 million.

Summary of Russian sources

The war related deaths detailed in Russian sources are as follows.

Krivosheev's analysis

1993 Russian Ministry of Defense report authored by a group headed by General G. F. Krivosheev detailed military casualties. Their sources were Soviet reports from the field and other archive documents that were secret during the Soviet era, including a secret Soviet General Staff report from 1966–68. Krivosheev's study puts Soviet military dead and missing at 8.7 million and is often cited by historians. Krivosheev maintained that the figure of 8.668 million is correct because it excludes called up reservists that were never inducted, men who were duplicated as conscripts because they were conscripted again into the Soviet army and Navy during the war as territories were being liberated and non-combat related causes. The statistic of 8.668 million military dead includes only the combat related deaths of the forces in the field units of the Army and Navy and does not include civilian support forces in rear areas, conscripted reservists killed before being listed on active strength, militia units, and Soviet partisan dead, Krivosheev maintained that they should be included with civilian war losses.
Dead and missingWounded and sick
Battle of Khalkhin Gol 19399,70315,952
Invasion of Poland 19391,4752,383
Winter War 1939–40126,875264,908
World War II 1941–458,668,40022,326,905
Total8,806,45322,610,148

The schedule below summarizes Soviet casualties from 1941–1945.
CauseEstimate
KIA or died of wounds6,329,600
Missing in action500,000
Noncombat deaths of units at the front
555,500
Died or killed while POW1,283,200
Total irrecoverable losses 8,668,400

Missing in action500,000
Missing later re-conscripted940,000
POW deaths1,283,000
POW returned to USSR1,836,000
Total reported missing4,559,000

Krivosheev's analysis shows that 4,559,000 were reported missing, out of which 500,000 were missing and presumed dead, 939,700 were re-conscripted during the war as territories were liberated, 1,836,000 returned to the U.S.S.R. after the war, while the balance of 1,283,300 died in German captivity as POWs or did not return to the USSR. Krivoshhev wrote, "According to German sources 673,000 died in captivity. Of the remaining 1,110,300, Soviet sources indicate that over half also died in captivity". Sources published outside of Russia put total POW dead at 3.0 million. Krivosheev maintains that this figure based on German sources includes civilian personnel that were not included in the reports of the Army and Navy field forces. In a 1999 article Krivosheev noted that after the war 180,000 liberated POWs did not return to the USSR and most likely settled in other countries, Krivosheev did not mention this in the English language translation of his study. According to declassified documents from the Soviet archives 960,039 surviving Soviet military POW were turned over to the Soviet authorities by the Western powers and 865,735 were released by the Soviet forces in territory they occupied.
DescriptionBalance
Army & Navy strength – June 19414,902,000
Drafted during war29,575,000
Discharged during war
Army & Navy strength in June 1945
Losses of conscripted reservists 1941 not officially inducted
Subtotal: operational losses11,444,000
Missing later re-conscripted
Liberated POW returned to USSR
Total losses8,668,000

The June 1945 force strength of 12,840,000 included 11,390,600 on active service; 1,046,000 in hospital; and 403,200 in civilian departments.
WoundedSickTotal
Total14,685,5937,641,31222,326,905
Of these:
Discharged
Returned to duty
Died

DescriptionIrrecoverable lossesWounded & sickTotal losses
1941 3rd Q2,129,677687,6262,817,303
1941 4th Q1,007,996648,5211,656,517
1942 1st Q675,3151,179,4571,854,772
1942 2nd Q842,898706,6471,549,545
1942 3rd Q1,224,4951,283,0622,507,557
1942 4th Q515,508941,8961,457,404
1943 1st Q726,7141,425,6922,152,406
1943 2nd Q191,904490,637682,541
1943 3rd Q803,8562,060,8052,864,661
1943 4th Q589,9551,567,9402,157,895
1944 1st Q570,7611,572,7422,143,503
1944 2nd Q344,258965,2081,309,466
1944 3rd Q510,7901,545,4422,056,232
1944 4th Q338,0821,031,3581,369,440
1945 1st Q557,5211,594,6352,152,156
1945 2nd Q243,296618,055861,351
Campaign in Far East12,03124,42536,456
Subtotal operational losses: Army & Navy11,285,05718,344,14829,629,205
Add: losses border/internal service troops159,100
Subtotal: operational losses11,444,100
Less: missing later re-conscripted
Less: liberated POW returned to USSR
Total irrecoverable losses8,668,400

Krivosheev's group estimated losses for the early part of the war, because from 1941–1942 no surrounded or defeated divisions reported their casualties.
Total wounded and sick includes 15,205,592 wounded, 3,047,675 sick and 90,881 frostbite cases. Included in the total of 11.444 million irrecoverable losses are 1,100,327 died of wounds in hospital.
Field reports stated the number of wounded and sick as 18,344,148, while the records of the military medical service show a total of 22,326,905. According to Krivosheev the difference can be explained by the fact that the medical service included sick personnel who did not take part in the fighting.
Age groupTotal losses% of total losses
Under 20 years1,560,00018.0
21–251,907,00022.0
26–301,517,00017.5
31–351,430,20016.5
36–401,040,20012
41–45693,5008
46–50433,4005
over 50 years86,7001
All age groups8,668,400100

Criticism of Krivosheev

Krivosheev's analysis has been disputed by independent scholars in Russia. His critics maintain that he underestimated the number of missing in action and POW deaths and deaths of service personnel in rear area hospitals. Makhmut Gareev, former Deputy Chief of the General Staff of the Armed Forces of the USSR, maintains that the published information on Soviet casualties is the work of the individual authors and not based on official data. According to Gareev the Russian government has not disclosed the actual losses in the war.
Western scholars estimate 3.3 million dead out of 5.7 million total Soviet POW captured. According to German figures 5,734,000 Soviet POWs were taken Between 22 June 1941 and the end of the war, roughly 5.7 million members of the Red Army fell into German hands. In January 1945, 930,000 were still in German camps. A million at most had been released, most of whom were so-called ‘volunteers’ for auxiliary service in the Wehrmacht. Another 500,000, as estimated by the Army High Command, had either fled or been liberated. The remaining 3,300,000 had perished.". However, according to Krivosheev the Germans claimed to have captured up to 5.750 million POWs, he maintains that the figures in Nazi propaganda included civilians and military reservists that were caught up in the German encirclement's. Krivosheev puts the number of Soviet military POW that actually were sent to the camps at 4,059,000. Krivosheev maintained that the figure of 3.0 million POW dead reported in western sources included partisans, militia and civilian men of military age taken as POWs in the early stages of the war in 1941. In addition to the German-held POW Romania captured 82,090 Soviet POWs, 5,221 died, 3,331 escaped, and 13,682 were released Finland captured 64,188 Soviet POWs, at least 18,318 were documented to have died in Finnish prisoner of war camps.

Analysis of S. N. Mikhalev

In 2000 :ru:Михалев, Сергей Николаевич|S. N. Mikhalev published a study of Soviet casualties. From 1989 to 1996 he was an associate of the Institute of Military History of the Ministry of Defence. Mikhalev disputed Krivosheev's figure of 8.7 million military war dead, he put Soviet military dead at more than 10.9 million persons based on his analysis of those conscripted. He maintained that the official figures could not be reconciled to the total men drafted and that POW deaths were understated. Mikhalev put the total irreplaceable losses at 13.7 million; he believed that the official figures understated POW and missing losses, that the deaths of service personnel convicted of offenses were not included with the overall losses and that the number who died of wounds was understated.
Notes:

Convicted of offences by Soviet military

S. N. Mikhalev included in his figure irrecoverable losses the deaths of 994,300 Soviet military personnel that were convicted of offences during the course of the war

Russian Military Archives database

An alternative method is to determine losses from the Russian Military Archives database of individual war dead. S. A. Il'Enkov, an official at the Russian Military Archives, maintained that the "complex military situation at the front did not always allow for the conduct of a full accounting of losses, especially in the first years of the war" He pointed out that in the reports from the field units did not include deaths in rear area hospitals of wounded personnel. Il'Enkov maintained that the information in the Russian Military Archives alphabetical card-indexes "is a priceless treasure of history, which can assist in resolving the problems of the price of Soviet victory" Il'Enkov maintained it could provide an accurate accounting of war losses. He concluded by stating, "We established the number of irreplaceable losses of our Armed Forces at the time of the Great Patriotic War of about 13,850,000. Krivosheev maintained that the database of individual war dead is unreliable because some personnel records are duplicated and others omitted.

Critics

Critics of the official figures by the Russian Ministry of Defense base their arguments on self analyses of documents in the Soviet archives and demographic models of the Soviet population during the Stalin era.
Andreev, Darski and Karkova put total losses at 26.6 million. The authors did not dispute Krivoshev's report of 8.7 million military dead. Their demographic study estimated the total war dead of 26.6 million included 20.0 million males and 6.6 million females. In mid-1941 the USSR hosted 8.3 million more females; by 1946 this gap had grown to 22.8 million, an increase of 13.5 million.

Civilian losses

A 1995 paper published by the M.V. Philimoshin, an associate of the Russian Defense Ministry, put the civilian death toll in the regions occupied by Germany at 13.7 million. Philimoshin cited sources from Soviet era to support his figures and used the terms "genocide" and "premeditated extermination" when referring to deaths of 7.4 million civilians caused by direct, intentional violence. Civilians killed in reprisals during the Soviet partisan war account for a major portion. Philimoshin estimated that civilian forced laborer deaths in Germany totaled 2.1 million. Germany had a policy of forced confiscation of food that resulted in famine deaths of an estimated 6% of the population, or 4.1 million. Russian government sources currently cite these civilian casualty figures in their official statements.
Deaths caused by the result of direct, intentional actions of violence7,420,135
Deaths of forced laborers in Germany2,164,313
Deaths due to famine and disease in the occupied regions4,100,000
Total13,684,448

Demographic studies of the population losses

Studies by Andreev, Darski and Kharkova

E.M. Andreev, L.E. Darski and T. L. Kharkova authored The Population of the Soviet Union 1922–1991, which was published by the Russian Academy of Science in 1993. Andreev worked in the Department of Demography Research Institute of the Central Statistical Bureau. The study estimated total Soviet war losses of 26.6 million. As of 2015, this was the official Russian government figure for total losses. These losses are a demographic estimate rather than an exact accounting.
Population in June 1941196,700,000
Births during war12,300,000
Death by natural causes during war of those alive before war
War related deaths of those alive before war
War related deaths of those born during war
Total population 1 January 1946170,500,000

Notes:
Age GroupMid 1941–Males 1941–45 Male War Deaths % Age GroupMid 1941–Females 1941–45 Female War Deaths % Age GroupMid 1941–Total Population 1941–45 Total War Deaths % Age GroupExcess Male Deaths
0–1427.8791.4255.1%27.9841.3985.0%55.8632.8235.1%.027
15–1911.0921.0649.6%11.2200.3403.0%22.3121.4046.3%.723
20–3424.9489.00536.1%26.3302.66310.1%51.27811.66822.8%6.342
35–4918.4976.13933.2%20.2367813.9%38.7336.92017.9%5.358
Over 4911.9992.41820.2%16.9761.3808.1%28.9753.79813.1%1.038
All Age Groups94.41520.05121.2%102.7466.5626.4%197.16126.61313.5%13.489

Remarks:
Another study, The Demographic History of Russia 1927–1959, analyzed voters in the February 1946 Soviet election to estimate the surviving population over the age of 18 at the end of the war. The population under 18 was estimated based on the 1959 census. Official records listed 101.7 million registered voters and 94.0 million actual voters, 7.7 million less than the expected figure. ADK maintained that the official results of the 1946 election are not a good source for estimating the population. They believe that the total of expected voters should be increased by 10.5 million because the roll of voters excluded those deprived of their rights, in prison or in exile. ADK maintained that many young military men did not participate in the election, and an overestimation of women in rural areas without internal passports who sought to avoid compulsory heavy labor. Included in the voter total were 29.9 million "excess" women. However number of expected voters estimated by ADK the gap between males and females was 21.4 million, which approximates the 20.7 million gap revealed by the 1959 census. The prewar population of 1939 had an excess of 7.9 million females. The ADK analysis found that the gap had increased by about 13.5 million.

Alternative sources of demographic losses

Russian demographer Rybakovsky found a wide range of estimates for total war dead. He estimated the actual population in 1941 at 196.7 million and losses at 27–28 million. He cited figures that range from 21.7–46 million. Rybakovsky acknowledged that the components used to compute losses are uncertain and disputed.
Population estimates for mid-1941 range from 191.8–200.1 million, while the population at the end of 1945 range from 167.0 million up to 170.6 million. Based on the pre-war birth rate, the population shortfall was about 20 million births in 1946. Some were born and died during the war, while the balance was never born. Only rough estimates are available for each group. Estimates for the population of the territories annexed from 1939–45 range from 17 to 23 million persons.
Rybakovsky provided a list of the various estimates of Soviet war losses by Russian scholars since 1988.
AnalystDeaths
A. Kvasha 26–27
A. Samsonov 26–27
Yu. Polyakov 26–27
L.L. Rybakovsky 27–28
I. Kurganov 44
S. Ivanov 46
E. M. Andreev 26.6
A. Samsonov 26–27
A. Shevyakov 27.7
A. Shevyakov 29.5
V. Eliseev, S. Mikhalev 21.8
A. Sokolov 21.7–23.7
Boris Sokolov 43.3

Estimates of losses by individual Republics

Former Soviet republics
Memorial in Belarus, commemorating the loss of life in the Khatyn massacre of 1943 during World War II.
The contemporary nations that were formerly Soviet Republics dispute Krivosheev's analysis. In a live broadcast of 16 December 2010 "A Conversation with Vladimir Putin", he maintained that the Russian Federation had suffered the greatest proportional losses in World War II—70 percent of the total. Official estimates by the former republics of the USSR claim military casualties exceeding those of Krivosheev's report by 3.5 times. It is claimed by the website sovsekretno.ru that there are no Memory Books published in the USSR, Russia and the other contemporary republics in the 80s and 90s listing casualties of 25 percent of the draft or less, but there are many Memory Books with 50 per cent and more with some telling us of a 70, 75, 76 and up to 79 per cent mortality rate among the conscripted.
The Ukrainian authorities and historians ardently dispute these figures. They put the military casualties alone may be estimated as exceeding 7 million, according to the final volume of the Ukrainian book "In the memory of posterity" and research of V. E. Korol, writes an American Doctor of History Vilen Lyulechnik. Former President of Ukraine Victor Yanukovych maintains that Ukraine has lost more than 10 million lives during the Second World War.
According to a Belorussian military historian, Doctor of History, professor V. Lemeshonok, the Belorussian military casualties, including partisans and underground group members, exceed 682,291.
The Memory Book of Tatarstan Government contains names of about 350,000 inhabitants of the republic, mostly Tatars.
Israeli historian Yitzhak Arad maintains that about 200,000 Soviet Jews or 40 per cent of all draft were killed in battles or captivity — the highest percentage of all nations of the USSR.
Kazakhstan estimates its military casualties at 601,029.
Armenians estimate their military casualties at over 300,000.
Georgians also estimate their military casualties at over 300,000.
Among the others Azerbaijanis claim military casualties of 300,000, Bashkirs of about 300,000, Mordvas of 130,000 and Chuvashes of 106,470. But one of the most tragic figures comes from a Far Eastern republic of Yakutia and its small nation. 37,965 citizens, mostly Yakuts, or 60.74 per cent of 62,509 drafted have not returned home with 7,000 regarded missing. About 69,000 died of severe famine in the republic. This nation could not restore its population even under 1959 census. The record breaking estimates of 700,000 military casualties out of a total 1,25 million Turkmenian citizens are attributed to the late President of Turkmenistan Saparmurat Niyazov. Historians do not regard them as being trustworthy.

Estimated losses for each Soviet Republic

Russian historian Vadim Erlikman pegs total war deaths at 10.7 million, exceeding Krivosheev's 8.7 million by an extra two million. This extra two million would presumably include Soviet POWs that died in Nazi captivity, partisans, and militia.
Soviet RepublicPopulation 1940Military DeadCivilian DeadTotalDeaths as
% 1940 Pop.
Armenia1,320,000150,00030,000180,00013.6%
Azerbaijan3,270,000210,00090,000300,0009.1%
Belarus9,050,000620,0001,670,0002,290,00025.3%
Estonia1,050,00030,00050,00080,0007.6%
Georgia3,610,000190,000110,000300,0008.3%
Kazakhstan6,150,000310,000350,000660,00010.7%
Kyrgyzstan1,530,00070,00050,000120,0007.8%
Latvia1,890,00030,000230,000260,00013.7%
Lithuania2,930,00025,000350,000375,00012.7%
Moldova2,470,00050,000120,000170,0006.9%
Russia110,100,0006,750,0007,200,00013,950,00012.7%
Tajikistan1,530,00050,00070,000120,0007.8%
Turkmenistan1,300,00070,00030,000100,0007.7%
Uzbekistan6,550,000330,000220,000550,0008.4%
Ukraine41,340,0001,650,0005,200,0006,850,00016.3%
Unidentified-165,000130,000295,000
Total USSR194,090,00010,700,00015,900,00026,600,00013.7%

The names of Soviet war dead are presented at the OBD Memorial database online.

Causes

The Red Army suffered catastrophic losses of men and equipment during the first months of the German invasion. In the spring of 1941 Stalin ignored the warnings of his intelligence services of a planned German invasion and refused to put the Armed forces on alert. The bulk of the Soviet combat units were deployed in the border regions in a lower state of readiness. In the face of the German onslaught the Soviet forces were caught by surprise. Large numbers of Soviet soldiers were captured and many perished due to the brutal mistreatment of POWs by the Nazis. Earl F. Ziemke maintained high Soviet losses can be attributed to 'less efficient medical services and the Soviet tactics, which throughout the war tended to be expensive in terms of human life"
Russian scholars attribute the high civilian death toll to the Nazi Generalplan Ost which treated the Soviet people as "subhumans", they use the terms "genocide" and "premeditated extermination" when referring to civilian losses in the occupied USSR. German occupation policies implemented under the Hunger Plan resulted in the confiscation of food stocks which resulted in famine in the occupied regions. During the Soviet era the partisan campaign behind the lines was portrayed as the struggle of the local population against the German occupation. To suppress the partisan units the Nazi occupation forces engaged in a campaign of brutal reprisals against innocent civilians. The extensive fighting destroyed agricultural land, infrastructure, and whole towns, leaving much of the population homeless and without food. During the war Soviet civilians were taken to Germany as forced laborers under inhumane conditions.

Summary of the estimates and their sources

Estimates for Soviet losses in the Second World War range from 7 million to over 43 million. During the Communist era in the Soviet Union historical writing about World War II was subject to censorship and only official approved statistical data was published. In the USSR during the Glasnost period under Gorbachev and in post communist Russia the casualties in World War II were re-evaluated and the official figures revised.

1946 to 1987

in March 1946 stated that Soviet war losses were 7 million dead. This was to be the official figure until the Khrushchev era. In November 1961 Nikita Khrushchev stated that Soviet war losses were 20 million; this was to be the official figure until the Gorbachev era of Glasnost. Leonid Brezhnev in 1965 put the Soviet death toll in the war at "more than 20 million" Ivan Konev in a May 1965 Soviet Ministry of Defense press conference stated that Soviet military dead in World War II were 10 million. In 1971 the Soviet demographer Boris Urlanis put losses at 20 million including 6,074,000 civilians and 3,912,000 prisoners of war killed by Nazi Germany, military dead were put at 10 million.
Documents from the Extraordinary State Commission prepared in March 1946 not but published until the 1990s listed 6,074,857 civilians killed, 3,912,283 prisoner of war dead, 3,999,796 deaths during German forced labor and 641,803 civilian famine deaths during Siege of Leningrad.Жертвы двух диктатур. Остарбайтеры и военнопленные в Третьем Рейхе и их репатриация. – М.: Ваш выбор ЦИРЗ, 1996. – p735-738. The Soviet general staff put losses at 8,668,000 dead and missing, however the General Staffs figures were not published until 1993. Also 688,772 Soviet citizens who remained in western countries after the war were included with the war losses.

1988 to 1992

During the period of Glasnost the official figure of 20 million war dead was challenged by Soviet scholars. In 1988–1989 estimates of 26 to 28 million total war dead appeared in the Soviet press. The Russian scholar Dmitri Volkogonov writing at this time estimated total war deaths at 26–27,000,000 including 10,000,000 in the military. In March 1989 Mikhail Gorbachev set up a committee to investigate Soviet losses in the war. In a May 1990 speech Gorbachev gave the figure for total Soviet losses at "almost 27 million". This revised figure was the result of research by the committee set up by Gorbachev that estimated total war dead at between 26 and 27 million. In January 1990 M.A. Moiseev Chief of the General Staff of the Soviet Armed Forces disclosed for the first time in an interview that Soviet military war dead totaled 8,668,400. In 1991 the Russian scholar A.A. Shevyakov published an article with summary of civilian losses based on his analysis of the archival records of the Soviet Extraordinary State Commission, civilian dead were given as 17.7 million. In a second article in 1992 A.A. Shevyakov gave a figure of 20.8 million civilian dead; no explanation for the difference was given.

Russians published in the West 1950–83

In 1949 a Soviet Colonel Kalinov defected to the west, he published a book claiming that Soviet records indicated the military loss of 13.6 million men including 2.6 million POW dead. Sergei Maksudov a Russian demographer living in the west estimated Soviet war losses at between 24.5 and 27.4 million, including 7.5 million military dead. The Soviet mathematician Iosif G. Dyadkin published a study in the United States that estimated the total Soviet population losses from 1939–45 due to the war and political repression at 30 million. Dyadkin was imprisoned for publishing this study in the west.

Western scholars

Historians writing outside of the Soviet Union and Russia have evaluated the various Russian language sources and have offered their estimates of Soviet war dead. Here is a listing of estimates by recognized scholars published in the West.
SourceMilitary DeadCivilian DeadTotal Dead
Frank Lorimer,5,000,00011,000,00016,000,000
Pierre George 7,000,00010,000,00017,000,000
N. S. Timasheff,7,000,00018,300,00025,300,000
Helmut Arntz 13,600,0007,000,00020,000,000+
Jean-Noël Biraben 8,000,0006,700,00014,700,000
Warren W. Eason 10,000,00015,000,00025,000,000
E. Ziemke more than
12,000,000
Albert Seaton 10,000,000
Gil Elliot 10,000,00010,000,00020,000,000
Charles Messenger 20,000,000
John Keegan 7,000,0007,000,00014,000,000
R. J. Rummel 7,000,00012,250,00019,625,000
plus 10,000,000
due to Soviet repression
John Ellis 11,000,0006,700,00017,700,000
Michael Ellman and Sergei Maksudov 8,700,00018,000,00026–27,000,000
Norman Davies 8–9,000,00016–19,000,00024–28,000,000
Richard Overy 8,668,40017,000,00025,000,000
Mark Mazower 9,500,00010,000,00019,500,000
David Wallechinsky 13,600,00020–26,000,000
Michael Clodfelter 8,668,40020–26,000,000
Michael Haynes 8,700,00017,900,00026,600,000
Martin Gilbert 10,000,000
KIA
& 3,300,000
POW
7,000,00020,000,000+
H. P. Willmott 8,700,00016,900,00025,600,000
Tony Judt 8,600,00016,000,00024,600,000
Norman Davies 8,668,00018,332,00027,000,000
Cambridge History of Russia 8,700,000+13,700,000
in Nazi occupied USSR
and 2,600,000
in interior USSR
24–26,000,000
Steven Rosefielde 8,700,000
"all causes"
"17,700,000
or 20,300,000"
"26,400,000
to 29,000,000"
plus 5,458,000
due to Soviet repression

The authors of the Cambridge History of Russia believe that "In short the general picture of Soviet wartime losses suggests a jigsaw puzzle. The general outline is clear: people died in colossal numbers but in many different miserable and terrible circumstances. But individual pieces of the puzzle do not fit well; some overlap and others are yet to be found"