International law is the body of rules, agreements, and treaties that bind countries together. When sovereign states enter into legally binding and enforceable agreements, this is referred to as international law. Countries band together to create legally binding rules that they believe will benefit their citizens. International law fosters peace, justice, common interests, and commerce. Governments are subject to international law. It is the responsibility of each state government to implement and enforce international laws. The laws of a country apply to its citizens as well as other people who are present in the country. However, it is the responsibility of the country's governing authority to apply international law and adhere to their agreements with the other countries that are involved..