The book provides an in-depth analysis of geopolitical dynamics of the countries along the Bay of Bengal and beyond. It covers the jostling for influence in the region by the major extra-regional powers such as the United States, China and Japan. The book explores the possibility of re-integration of South Asia with Southeast Asia. The book also looks into the possibility of the Bay as reservoir of resources such as oil, gas and fisheries as part of blue economy for the energy-starved countries such as Bangladesh, Sri Lanka etc. The book also discusses the criticality of the sea lines of communication that pass along the Bay from the Persian Gulf to the Malacca Strait for energy security for the developed nations such as China, Japan, the United States, South Korea etc.