On Wednesday , members of the Israeli military, its border police, and its security service Shin Bet staged a raid on the Ibn Sina hospital in the city of Jenin in the northern West Bank. Israeli personnel — all wearing disguises, such as hospital scrubs or a white doctor’s coat, and caught on closed-circuit video — shot and killed three Palestinian men. This likely broke several laws of war, including the prohibition against perfidy and the killing of protected people. According to the New York Times, Hamas issued a statement acknowledging that one of the men was a leader in...