Absolutely. As Robert E Lee eloquently said: "It is well that war is so terrible, otherwise we should grow too fond of it."
In war there is no good. It's just evil. The only difference is between winners and losers.
> The psychology behind committing such crime is beyond the “sexual urge” excuse.
Isn't it innate nature? In the wild, whether it is chimps or lions, you vanquish the males and rape/procreate with the females. For much of human history, rape wasn't a crime. One of the reasons for going to war was for women. Women were considered spoils of war. You can find it in seminal western texts like Iliad or the bible. The entirety of european colonization ( from africa to china ) was mass rape of women. As has been in pretty much all human cultures since we kept records.