The term "international law" refers to 1) agreements, such as treaties, between nations (also called public international law), and 2) conflicts over which laws apply in disputes involving individuals or businesses from different nations (also called private international law). Areas covered by international law include trade and commerce, human rights, families and children, intellectual property, and finance and banking. Agreements between countries create many rules that you must follow if you are doing business or even traveling outside the U.S.