Treaty: A formal agreement between countries that establishes rules governing their relationship on various issues such as trade, peacekeeping measures, territorial disputes, etc.
Mediation: The process of intervention by a neutral third party to help facilitate negotiations and resolve conflicts between conflicting parties. The mediator acts as a bridge, facilitating communication and finding common ground.
Summit: A high-level meeting between leaders or representatives of different nations to discuss important issues, build relationships, and negotiate agreements.