The two areas that make up this region, South Asia and Central Asia, have a rich heritage. They are home to some of the world’s oldest religions and are at the crossroads of the historic Silk Road. With over a billion people, India is the region’s largest country and the world’s biggest democracy. But India’s troubled relationship with its neighbor Pakistan looms over the region. As the countries of South Asia set off on the path of economic growth, the relationship between these two nuclear-armed countries affects virtually every aspect of the region’s future including trade, terrorism, and foreign policy.