The end of the Bosnian War—which killed 100,000 people; displaced millions; and culminated in Europe’s deadliest atrocity since World War II, the Srebrenica genocide—marks its 30th anniversary this month. The peace accords agreed upon in Dayton have held Bosnia and Herzegovina together for the past three decades, an impressive achievement—one that can serve as a model for peacekeepers elsewhere, including the Trump administration’s 20-point peace plan for Gaza . The scars of war are indeed hard