The OSCE is the world's largest regional security organization with 57 participating States from North America, Europe and Asia, which promotes peace, democracy and stability in the area with a population of over a billion people. The OSCE serves as a forum for political dialogue at high level on a wide range of security issues, and as a platform for action to improve the lives of people and their communities. Being a comprehensive regional instrument for early warning, conflict prevention, crisis management and post-conflict rehabilitation, the OSCE contributes to overcome the differences between the states and build trust based on cooperation. Through its specialized institutions, expert units and a network of field missions, the OSCE addresses a number of issues affecting our common security, including arms control, counter-terrorism, good governance, energy security, anti trafficking in persons, democratization, media freedom and the rights of national minorities. Security affects many aspects of our life. The OSCE adheres to the concept of comprehensive security and is working on its three dimensions - the politico-military, economic-environmental and human - as a single whole.