Recent missiles sent by Hamas landed in Hebron. When my neighbor told me about this, it was unclear whether they had hurt any Arab civilians. I said that I hoped not, while my neighbor basically said that she hoped yes, and would be very happy if that was the case.
My question is, according to Torah hashkafa, is there a correct emotion to feel upon hearing about enemy civilian deaths (whether inflicted by the IDF or Palestinians), and, if so, what is it?
I'm not asking about the legitimacy of the Israeli army carrying out operations that will inevitably kill Arab civilians. I want to know if it is correct and appropriate to feel sad for them, or if this feeling is in any way misplaced.