The tsunamis of Sunday 26 December 2004 struck without apparent warning on a clear day. Not only was there a devastating loss of life, but coastal resources and infrastructure in the Indian Ocean suffered massive destruction as well. This book focuses on the impacts on the natural coastal resources, especially the coral reefs and associated ecosystems, and the responses by the international community. It compiles and summarises many reports and reef damage assessments into a single volume and makes the findings, especially the recommendations, available for decisions makers and people of the region.