Disagreements between nations have often led to war, but the United Nations, along with other international bodies, work instead for peaceful outcomes to disputes. International law is a complex field, covering both quarrels between countries and between citizens of the same country. The founders of the United Nations believed international law to be important enough to create the International Court of Justice as one of the UN?s main bodies, Later, with the creation of peacekeeping forces, the United Nations developed another means of dealing with international disagreements.In this book, you will read about the development of international law from centuries before the founding of the United Nations. You will also learn about some of the successes of international law organizations and about the many challenges faced by those trying to enforce the decisions of the UN's International Court of Justice.