How can Israel bombing its own land violate international humanitarian law? They took possession of the Gaza Strip, the Sinai Peninsula, the West Bank, including Jerusalem, and the Golan Heights after their victory in the Six Day War, and have rightly continued to hold it. Moscow has nothing to whine about.
I would reckon it’s something akin to The Posse Commitatus Act, ie use of a military force against predominantly civilian population.
Much as I reall really hate Sherman Tecseh Grant, he was right on the score bout one thang: War is hell.
With that being said, civvie casualties are highly unprofessional still .