What happens when a nation splits apart? It's a question many of us are asking ourselves today. It happened 75 years ago with Partition, when India and Pakistan became independent nations, divided by a somewhat arbitrary line that separated neighbors, families, and communities. 15 million people were displaced, leaving a trail of chaos and violence that in some ways has never ended. In today's episode, NPR politics reporter Asma Khalid takes us back in time to learn how the road to Partition was paved, and to try to understand how people and nations reach a tipping point when neighbors realize it's no longer possible to live side by side.