People pursuing careers as international lawyers, diplomats, and policy advisors need to know international law. Corporate lawyers, ambassadors, mediators, and legal advisors also use international law. You can apply your knowledge of international law to many different fields of work as well. Understanding the law can help people who are doing international humanitarian work determine how people have been harmed by laws and how laws can help them recover. Workers involved in international relations and diplomacy use international law as a way to understand the opportunities available and limitations involved in relations between countries. People in international business need to know the rules and regulations of the region in which they're operating.‎

Learning international law can be practical and enriching, and studying the subject will help you understand the rights, regulations, and cultures of other countries. This information can be useful if you're interested in working abroad or working with people from other countries. Work in international business, international relations, or philanthropy often calls for knowledge of the laws involved.

Additionally, different legal systems have different underlying philosophies, and learning about them can expand your understanding of the world. Approaches toward criminal justice vary greatly. In some nations, rights are emphasized, while in others, the legal system centers on restrictions. Some systems favor arbitration, and others favor litigation. Studying international law can give you a greater perspective on these differences.‎

Online courses can help you learn more about the aspects of international law that match your interests and needs. If you're interested in criminal law, you can take a course on that subject or pursue one aspect of international criminal law, such as terrorism, in depth. If you're interested in human rights, you can take online courses that look at the humanitarian aspects of law. Some courses look at legal philosophies that apply in several countries, such as English common law. Others cover practical matters. If you're a businessperson, aim to learn more about international dispute resolution or contract negotiations through online courses on these topics.‎