This document defines diplomacy and discusses its functions, both bilateral and multilateral forms. Diplomacy is the application of intelligence and tact to conduct relations between independent states through official representatives. Its key functions include representing state interests, obtaining and reporting information, policymaking, and providing consular services. The document also outlines legal aspects of diplomacy like immunity, persona non grata status, and asylum. It notes the shift toward more multilateral diplomacy conducted through international organizations and conferences.