Foreign relations of Nigeria bilateral relations Delimitation of international boundaries in the vicinity of Lake Chad, the lack of which led to border incidents in the past, has been completed and awaits ratification by Cameroon, Chad, Niger, and Nigeria; dispute with Cameroon over land and maritime boundaries around the Bakasi Peninsula is currently before the International Court of Justice; maritime boundary dispute with Equatorial Guinea because of disputed jurisdiction over oil-rich areas in the Gulf of Guinea. The Federation of Nigeria became independent from the United Kingdom in 1960 with Queen Elizabeth II as Queen of Nigeria. Nigeria became a Commonwealth republic in 1963,
Constitution of Chad Rights. The constitutional endorsement of the Universal Declaration of Human Rights is an aspect Chad has in common with many national constitutions: among African countries, it is endorsed by Benin, Burkina Faso, Burundi, Cameroon, Cape Verde, Comoros, Congo-Brazzaville, Côte d'Ivoire, Equatorial Guinea, Ethiopia, Gabon, Guinea, Guinea-Bissau, Mali, Mauritania, Niger, Rwanda, Senegal and Tanzania. A problem is represented by the implementation of the human rights norms, as there is a legal vacuum due to the lack of the necessary provisions in the Criminal Code, which has to be amended so that national legislation is put into line with the international human