Battle casualties of World War II The article summarizes casualties in different theatres of World War II . Only the military losses and civilian losses directly associated with hostilities are included into the article . The actions of the Axis ' and Allied military or civilian authorities that fit the definition of genocide , or war crimes ( including Nazi war crimes , Soviet war crimes , Allied war crimes , Holocaust , Nazi crimes against Soviet POWs " et caetera " ) are left beyond the scope of the present article . Polish Campaign , 1939 . Poland deployed 40 Infantry divisions and 16 brigades ( including 1 motorized brigade ) with 800 , 000 men . German forces included 44 Infantry and 14 Panzer divisions comprising 1 , 250 , 000 men . Polish losses were estimated in 1947 by the Polish government to be 66 , 300 killed and 133 , 700 wounded . German casualties based on statistics collected during the war were 10 , 570 KIA , 30 , 322 WIA and 3 , 400 MIA . The 1995 Polish estimate of military dead and missing was 95 , 000 - 97 , 000 and 130 , 000 wounded in the 1939 campaign , including 17 - 19 , 000 killed by the Soviets in the Katyn massacre A 2000 study by the German Armed Forces Military History Research Office estimated total German military dead at 15 , 000 in September 1939 . Polish forces deployed 475 tanks and 313 combat aircraft in the campaign . German forces deployed 2 , 511 tanks and 1 , 323 combat aircraft . German losses amounted to 674 tanks and 564 aircraft . Russo - Finnish War , 1939 – 1940 . Finland deployed 9 infantry divisions with 327 , 800 men and 287 combat aircraft . The Soviet Union deployed 54 divisions , with 760 , 578 men , 3 , 200 tanks and 2 , 500 aircraft . Finnish losses amounted to 23 , 157 KIA , 1 , 766 MIA , 43 , 557 WIA and 61 aircraft . Soviet losses were 126 , 875 dead and missing , 264 , 908 wounded , 1 , 600 tanks and 725 planes . Denmark and Norway April 1940 . The Germans deployed 107 , 000 men to seize Denmark and Norway and suffered total casualties on land of 5 , 660 , ( including 1 , 317 killed on land and 2 , 375 at sea . The UK , France and Poland forces totaled 80 , 000 men and suffered total casualties on land of 4 , 000 . Norway deployed 5 divisions with 90 , 000 men . and lost 2 , 000 dead and missing . The Royal Navy lost 2 cruisers , 9 destroyers and 6 submarines . Aircraft losses were 110 . Germany lost 3 cruisers 10 destroyers and 6 submarines . Western Europe May – June 1940 . German forces totaled 123 divisions ( including 10 Panzer div ) with 2 , 350 , 000 men , 2 , 574 tanks and 3 , 500 planes . Allied forces : total manpower 2 , 862 , 000 and 3 , 609 tanks . France - 103 divisions ( including 3 armoured divisions ) ; UK - 9 divisions with 394 , 165 men and 1 , 660 aircraft . Poland 1 division ; Belgium - 22 divisions with 600 , 000 men ; The Netherlands 9 divisions with 400 , 000 men . German casualties based on statistics collected during the war included 27 , 074 KIA , 18 , 384 MIA and 111 , 034 WIA . Equipment losses were 753 tanks and 1 , 284 aircraft . UK total casualties were 68 , 111 including 11 , 000 KIA . The RAF lost 931 aircraft . French losses were 92 , 000 KIA , 39 , 600 MIA and over 250 , 000 WIA . French aircraft losses were 560 . Belgian total casualties were 23 , 350 including 6 , 500 KIA . Dutch total casualties were 9 , 779 including 2 , 100 KIA . Civilian deaths totaled 13 , 000 in France 13 , 000 Belgium and 2 , 000 in the Netherlands . A 2000 study by the German Armed Forces Military History Research Office estimated total German military dead at 50 , 000 in May and June 1940 . 32 Italian divisions attacked France in the Alps region defended by 6 French divisions . The French repulsed the attack with a loss of 79 killed . Italian losses were 1 , 247 KIA , 2 , 631 WIA and 3 , 878 POW . . The Battle of Britain July 1940 - May 1941 . In the summer of 1940 German air forces opposing the UK totaled 2 , 830 aircraft including 1 , 300 Me - 109 / Me - 110 fighters and 1 , 350 Heinkel bombers . The RAF had 650 operational fighters including 120 Spitfires . During the Battle of Britain from July 10 , 1940 until October 31 , 1940 the UK lost 1 , 065 aircraft ( including 1 , 004 fighters ) ; Germany lost 1 , 922 aircraft ( including 879 fighters , 80 Stukas and 881 bombers ) . UK civilian losses in the German Blitz that ended in May 1941 totaled 43 , 381 killed and 50 , 856 injured . German Luftwaffe losses from August 1940 until March 1941 were 2 , 840 aircraft . Casualties of the German aircrew were 3 , 363 KIA , 2 , 117 WIA and 2 , 641 taken prisoner . Greece 1940 - 1941 . Italian forces invaded Greece in October 1940 . By March 1941 Italian forces of 526 , 550 men and 16 divisions were held back by 14 Greek divisions . German intervention in April 1941 forced the Greeks to surrender . The Italians lost 13 , 755 KIA , 50 , 874 WIA , 12 , 368 MIA and 12 , 368 disabled by frostbite . The Greeks lost 13 , 048 KIA and 42 , 485 WIA . Italian losses from October 1940 to April 1941 , including the war in Greece and Yugoslavia totaled 38 , 830 KIA and 50 , 870 WIA . In April 1941 the German 12th Army organized in 10 divisions and 3 regiments with 1 , 907 tanks invaded Greece . Allied forces opposing the Germans included British Empire forces 56 , 657 organized in 2 divisions and 1 brigade ; and Greek forces of 3 divisions . The Germans rapidly defeated the allies losing 1 , 423 KIA and 3 , 411 wounded . British Empire forces lost 3 , 700 dead and 8 , 000 taken prisoner . The Greeks lost 70 , 000 killed and wounded plus 270 , 000 POW . 50 , 732 allied troops were evacuated by sea . Yugoslavia 1941 . German , Italian , Hungarian and Bulgarian of 650 , 000 men in 33 divisions faced 800 , 000 Yugoslav forces organized in 28 divisions . German forces suffered 151 KIA and 407 WIA . Italian and Hungarian losses totaled 1 , 000 . 341 , 000 Yugoslavs were taken prisoner and 3 , 000 to 17 , 000 civilians killed in the bombing of Belgrade . Eastern Front , 1941 – 1945 . Axis and Finland deployments . According to Soviet sources , for the invasion of Soviet Union in July , 1941 , Germany deployed 4 . 6 million men in 152 divisions and 2 separate brigades , 42 , 000 artillery , 4 , 000 tanks , and 4 , 000 aircraft . Co - belligerent Finland and Axis powers Hungary , Italy , and Romania deployed an additional 0 . 9 million men in 29 divisions and 16 brigades , 5 , 200 artillery , 300 tanks , and 1 , 000 aircraft . However , David Glantz puts the strength of the German forces and their allies in June 1941 at 3 , 767 , 000 Allied deployments . Against the invasion , the Soviet Union deployed 2 . 9 million men in 167 divisions and 9 brigades , 32 , 900 artillery ( not accounting for 50 mm rocket launchers ) , 14 , 200 tanks , and 9 , 200 aircraft . The Czechoslovak military units on Eastern front deployed 60 , 000 men , 68 artillery , 105 tanks , and 91 aircraft at their maximum in the Prague Offensive . The Polish Anders Army numbered 41 , 000 troops , the Polish People ' s Army 200 , 000 , and the Polish resistance movement more than 300 , 000 . In 1944 , a number of Germany - allied nations switched on the Soviet side . The Romanian forces deployed 538 , 536 troops against Germany , Bulgaria 455 , 000 , and Finland 213 , 000 . In the Prague Uprising , 30 , 000 Czech partisans participated . Axis and Finland military casualties . Against the Soviet forces , the German Armed Forces lost 3 , 604 , 800 men as killed in action , missing in action , or for non - combat reasons . An additional 3 , 576 , 300 were captured by the Soviets , 442 , 100 of whom died . Finland and the Axis suffered the loss of 668 , 200 men as killed in action , missing in action against the Soviet forces or for non - combat reasons on the Eastern Front . An additional 800 , 000 Axis and Finnish soldiers were captured by the Soviets , 137 , 800 of whom died . The casualties of Axis and Finland at the Eastern Front total at 4 , 852 , 900 deaths . Allied military casualties . The Soviet Armed Forces suffered 8 , 700 , 000 military deaths and missing in action . The number of Czech partisan deaths was 2 , 170 The Czechoslovak military units on Eastern front lost 4 , 570 as dead . The Polish resistance movement suffered 100 , 000 deaths . The number of Bulgarian partisan deaths against the " fascists " was 10 , 000 . 10 , 124 Bulgarian and 21 , 035 Romanian deaths were documented with the Allies . 1 , 036 Finns died in the Lapland War and 8 , 000 Czech partisans were killed in the Prague Uprising . The Allied casualties at the Eastern Front total at 8 , 900 , 000 deaths .