...a simplistic and uninformed view of how international humanitarian law developed, which was as a constraint on permissible measures of war. Just as international humanitarian law nowhere affirmatively sanctions the use of tanks, planes or machine guns, or even of
drones or guided missiles, it does not exhaustively prescribe other permissible measures of war. Rather, it permits any war measures potentially helpful to defeating an enemy armed force that it doesn't prohibit or delimit. As you correctly note, Marco Sassoli calls this military advantage. The U.S. calls it military necessity....