 In 1941 the Australian Official Historian recorded II Anzac Corps losses from 1 – 14 June as 4 @,@ 978 casualties in the New Zealand Division , 3 @,@ 379 casualties in the 3rd Australian Division and 2 @,@ 677 casualties in the 4th Australian Division . Using figures from the <unk> , Bean recorded German casualties for 21 – 31 May , 1 @,@ 963 ; 1 – 10 June , 19 @,@ 923 ( including 7 @,@ 548 missing ) ; 11 – 20 June , 5 @,@ 501 and 21 – 30 June , 1 @,@ 773 . In volume XII of Der Weltkrieg the German Official Historians recorded 25 @,@ 000 casualties for the period 21 May – 10 June including 10 @,@ 000 missing of whom 7 @,@ 200 were reported as taken prisoner by the British . Losses of the British were recorded as 25 @,@ 000 casualties and a further 3 @,@ 000 missing from 18 May – 14 June . The initial explosion of the mines , in particular the mine that created the Lone Tree Crater , accounts for the high number of casualties and missing from 1 – 10 June . In 1948 , the British Official Historian gave casualties of II Anzac Corps , 12 @,@ 391 ; IX Corps , 5 @,@ 263 ; X Corps , 6 @,@ 597 ; II Corps , 108 and VIII Corps , 203 a total of 24 @,@ 562 casualties from 1 – 12 June . The 25th Division history gave 3 @,@ 052 casualties and the 47th Division history notes 2 @,@ 303 casualties . The British Official Historian recorded 21 @,@ 886 German casualties , including 7 @,@ 548 missing , from 21 May – 10 June , using strength returns from groups Ypern , Wijtschate and Lille in the German Official History , then wrote that 30 % should be added for wounded likely to return to duty within a reasonable time , since they were " omitted " in the German Official History , reasoning which has been severely criticised ever since . In 2007 Sheldon gave 22 @,@ 988 casualties for the German 4th Army from 1 – 10 June 1917 . 
