Many countries in the modern world have multicultural populations with their roots and heritages in other countries.   Political violence, political extremism and terrorism, mass immigration, organized crime, globalization, and complex social factors are disturbing the social cohesion of countries throughout the world.   Governments are now seeking to establish the roots of extremism and radicalism that are impacting upon Western Europe, the USA, the Middle East and South-West Asia.   There is a need for specialist knowledge, expertise and experience in diagnosing and implementing solutions.  GOCA can help to provide this.