The International Bill of Human Rights consists of the Universal Declaration of Human Rights (UDHR), the International Covenant on Civil and Political Rights (ICCPR), and the International Covenant on Economic, Social and Cultural Rights (ICESCR), along with their optional protocols. The International Court of Justice (ICJ) is the principal judicial organ of the United Nations, responsible for settling legal disputes between states and giving advisory opinions, but it is not one of the constituent texts of the International Bill of Human Rights.