In previously strife-torn Aceh, children now play outside their homes, street vendors once again eke out a living selling food and drinks in makeshift open air stalls and families enjoying leisurely dinners outdoors—some even well past midnight.

Even the reported killings of civilians have dropped—from an average of 87 a month last year to only 12 deaths, says David Gorman, a negotiator for the Henry Dunant Center, the Swiss-ba