or even all that unusual. Stories of the rape and torture of women go back to the dawn of history. As we know, rape is not about sex but the ultimate degrading of and power over populations.
For example;
RAPE OF NANJING
Those suffered most from the barbarity were women. They were not only raped by the Japanese, they were often brutally killed by the Japanese after the rape. "Sometimes (Japanese) cut off their breasts to reveal their white ribs; sometimes Japanese pierce through their lower body with bayonets, let them cry in pain! Sometimes they sticks wooden sticks, reed pipe or carrots into their lower body and stir, until they are dead, Japanese soldiers clap their hands and loudly laugh alongside" (Ref. The Record of the Brutal Acts of the Japanese Invaders, Political Department, KMT Military Commission, Published July 1938).
A Chinese who were taken by the Japanese to serve as a cook told the following story after he escaped:
"On December 16th, I went to the streets, smoke and fire flames had not yet been extinguished. The number of the dead bodies of my countrymen was terrifyingly large, especially there were many corpses of women... Eight of ten of them had their abdomens being cut open, intestines squeezed out. There were several mothers laid died together with their fetuses covered by blood... the breasts of these female bodies were either cut off or bayoneted into a mixture of flesh and blood ..."
(Ref. "Blood debt--- Eye witness of the brutal acts of the enemy in the Capital", DaGong paper, Feb. 7th, 1938 )
http://www.centurychina.com/wiihist/njmassac/rape.htm