Beyond Representation: Reassessing Two Theories of Diplomacy—the Ambassador as Representative and the Ambassador as A Functional Necessity

This paper critically examines two major global, transnational perspectives on diplomacy, the “Ambassador as Representative Theory” and the “Ambassador as Functional Need Theory.” Historically, diplomacy has always been interpreted through the Representative Theory, in which the ambassador is primarily assumed to act as a formal representation of the sending state's will and interests for government-to-government exchanges. This classical, elite-centric position underpins both state sovereignty and international order, but has come to increasingly inadequately address citizenship for the 21st century, with a notable "gap between theory and reality" occurring, marginalising citizens rather than meeting their practical cross-border needs, increasingly in developing countries and in post-conflict settings. In contrast, Functional Need Theory, influenced by functionalism, maintains that ambassadors are still relevant because they meet the essential needs of societies for practical service and cross-border solutions. Thus, it recasts the ambassador as a “provider of services” and a problem-solver through such roles as protecting citizens, providing consular support, enabling trade, supporting diasporas, and public diplomacy. Such functionalists see diplomacy as a service-oriented, multi-actor endeavour, dependent on efficacy and trust in the public domain rather than solely state authority. In this article, the authors argue that modern diplomacy can neither be accounted for nor acted from the perspective of either theory alone. Instead, it calls for a hybrid that intentionally enmeshes both representation and functionality in an integrated citizen-centric ‘foreign policy’ system. In the context of diplomatic services and particularly in fragile states, functional diplomacy is necessary to build public trust, secure foreign policy legitimacy, and reinforce national cohesion. Diplomats have a dual responsibility: loyalty to the constitutional state and duty for the citizens as rights-holders, with professionalism measured by both political access and effective public service delivery.