This publication, compiling the experiences of the five most-affected countries in the South-East Asia Region, provides valuable insights on how best to meet the mental health and psychosocial needs of disaster-affected communities. There are many lessons which have been learnt, and which should help us to be better prepared for any future disasters. Building a strong community mental health system can be the best tribute to those who lost their lives in the tsunami, were injured or are missing, and to their families.