In the United Nations Millennium Declaration, 189 world leaders identified solidarity as one of the fundamental values essential to international relations in the 21st century: “Global challenges must be managed in a way that distributes the costs and burdens fairly in accordance with basic principles of equity and social justice. Those who suffer or who benefit least deserve help from those who benefit most.” Convinced that a culture of solidarity and a spirit of sharing was important for combating poverty and delivering the eight Millennium Development Goals, the UN General Assembly proclaimed 20 December as International Human Solidarity Day. You can find further information about this on the International Human Solidarity Day website. In class you could consider the meaning of the word "solidarity", and discuss how - and to what extent - it helps combat poverty and achieve social justice. To find further resources to help you mark this day in your school, have a browse through those listed under the topics of Social Justice and Sustainable Development Goals.