Only 20 per cent of the world’s population has adequate social security coverage and more than half lack any coverage at all. The ILO actively promotes policies and provides assistance to countries to help extend adequate levels of social protection to all members of society. Social security involves access to health care and income security, particularly in cases of old age, unemployment, sickness, invalidity, work injury, maternity or loss of a main income earner. A “Global Campaign on Social Security and Coverage for All” launched in 2003 builds on efforts already underway in more than 30 countries. These include projects to help countries extend coverage at the national level and to strengthen community-based social security organizations.