Opinion | The Primitive Pacifism of Pope Francis’ Lecture to Israel

Pope Francis reportedly warned Israeli President Isaac Herzog in a phone call that it is “forbidden to respond to terror with terror.” Assuming he meant this as a criticism of Israel’s efforts to defend itself against Hamas, one might dismiss it as the ill-informed opinion of a left-leaning politician. But the pope’s error is worth taking seriously, because he speaks with some authority on matters of war and peace. Catholic theology has shaped the Judeo-Christian “just war” theory that midwifed the modern laws of war.

If the pope believes there is a certain level of civilian casualties in Gaza that is per se impermissible, he is fundamentally wrong. That view, common though it is, conflicts with key just-war precepts that demand careful balancing of competing imperatives.