International treaties regulate trade relations by establishing the legal framework governing trade practices, tariffs, and market access between countries. Such agreements, like the North American Free Trade Agreement (NAFTA) or the World Trade Organization (WTO) protocols, aim to facilitate equitable trade, reduce barriers, and promote economic cooperation. These treaties can shape national economic policies, influence domestic industries, and encourage foreign investment. Challenges in treaty compliance or disputes can arise, necessitating diplomatic efforts to resolve conflicts and maintain stable trade relationships.