The document discusses several key concepts in international law:
- The Principle of Reciprocity in relationships which defines a human tendency to want to give back when receiving something.
- Sovereignty refers to the ultimate authority and jurisdiction of a state over its people and territory.
- The key differences between treaties and executive agreements in how the US becomes party to international agreements - treaties require two-thirds Senate approval while executive agreements do not.
- Other concepts discussed include baselines, which establish maritime boundaries, and the UN Convention on the Law of the Sea (UNCLOS), which defines rights and responsibilities of nations in using the oceans.