International treaties play a pivotal role in shaping national legislation, as they establish binding agreements that member states must incorporate into their domestic legal frameworks. These treaties often necessitate changes in national laws to comply with international norms, impacting areas such as human rights, trade, and environmental policy. Ratifying a treaty may require legislative action, prompting debates that can reflect regional interests and ideological divisions. Furthermore, treaties can bring nations together on common goals, thus fostering cooperation and influencing national agendas, ultimately integrating global standards into local legal systems.