TemplarKormac
Political Atheist
If you're referring to Israeli's in the OPT, and you're defining "acceptable" as "legal", then yes, it is acceptable. Nationals of an occupying power in the area that is occupied, are not protected persons.
So, these are civilians, and any attack on them is justified. I get it. Don't evacuate them, just kill them.
Show no mercy, receive none in return.