What explains Europe’s continued role in high-stakes diplomacy

European mediation as a response to exhaustion

European mediation did not begin as an expression of values. Rather, it was a response to exhaustion. The Napoleonic Wars (1792-1815) had affected the continent for over two decades. By the time European powers gathered at the Congress of Vienna (1814-15), the destabilising consequences of unconstrained great power competition had been recognised. 

The Congress of Vienna was not simply a peace settlement. It was the first systematic attempt in modern history to institutionalise diplomacy as a mechanism for managing conflict rather than merely concluding it. The Concert of Europe (1815-1914) that emerged from the Congress was, at its core, a balance-of-power architecture, which sought stability through managing rivalries among great powers.

The great powers, namely Austria, Prussia, Russia, Britain, and later France, agreed to manage their rivalry collectively. They decided to meet periodically, consult before acting, and treat disputes as problems with negotiated solutions. The underlying logic was not trust but calculation: each power recognised that unilateral pursuit of maximum advantage destabilised a system that ultimately served their long-term interests. 

In A World Restored (1957), Henry Kissinger argued that Vienna’s real achievement was the construction of a legitimate international order, one in which major powers agreed not on values or political systems but on the rules of engagement. Similarly, in The transformation of European politics, 1763-1848 (1994), Paul W Schroeder describes the system as political equilibrium, sustained not by trust between states but by mutual restraint, where each power accepted costs it would not otherwise have borne in exchange for systemic stability.

When Europe’s mediation architecture began to reveal its limits

Crucially, this architecture was value-neutral by design. The Congress of Berlin in 1878 illustrates this. Under the mediation of German Chancellor Otto von Bismarck, the congress gathered great powers to address the crisis in the Balkans and revise Russia’s post-war settlement with the Ottoman Empire. Bismarck was selected as the mediator precisely because Germany had no direct stake in Balkan affairs. 

Notably, the Concert of Europe offered a table, a diplomatic framework, and the collective authority to enforce settlement. Even the Crimean War, the first major conflict between great powers since Napoleon, was contained and resolved within this framework. The Congress of Paris in 1856 formally brought the Ottoman Empire into the Concert’s architecture. A war between great powers had been localised, negotiated, and closed without systemic collapse.

But the concert’s strength was also its limit. It was designed for a specific type of conflict: primarily interstate, fought between recognised sovereign actors with governments capable of negotiating and honouring agreements. 

It barely offered any framework for managing the conflicts that largely dominated the late nineteenth and early twentieth centuries –  nationalist independence movements, colonial contestations, and rebellions within states – that did not fit the model of two governments seeking a negotiated peace. As these conflicts became the dominant form of political violence in the twentieth century, Europe’s original mediation architecture began to reveal its limitations.

Diplomacy beyond balance of power

Alongside the Concert of Europe’s great-power machinery, a quieter, smaller but equally durable mediation tradition was developing. It was built not on the balance of power but on perceived neutrality of mediators. Countries like Switzerland, Norway, Austria, and Finland built their diplomatic identities as trusted third parties. Their effectiveness rested on a key principle: a mediator’s credibility depends significantly on the absence of a strategic self-interest in the dispute it seeks to resolve.

Switzerland’s case is the most historically sustained. Its neutrality, recognised by the great powers at Vienna in 1815, was not a passive status but an active diplomatic instrument. As a neutral country, Switzerland offered its services – “good offices” – to nations in conflict during WWI and WWII. Its good offices included carrying out 36 protecting power mandates during WWI. Protecting power mandates involve managing communication channels between or among opposing sides.

As legal scholar Dietrich Schindler documented in a journal article, Neutrality and Morality: Developments in Switzerland and in the International Community (1998), Switzerland’s neutrality lent credibility to its good offices precisely because it carried no explicit strategic agenda of its own. Geneva became the world’s diplomatic address not because Switzerland was powerful but because it was reliably uncommitted, and offered a space where adversaries could talk without conceding anything beyond their willingness to sit at the same table.

Mediation by small states

Norway institutionalised a version of this model in the late twentieth century, and the Oslo Accord of 1993 remain its clearest illustration. By the early 1990s, US-led negotiations between Israel and the Palestine Liberation Organisation (PLO) had reached a structural deadlock. Norway succeeded where the US could not, and the reason was structural rather than diplomatic. 

As Jan Egeland, Norway’s State Secretary during the negotiations, later explained, Norway’s effectiveness came from three things: 

1. A smaller bureaucratic machine that could move quickly and discreetly. 

2. A foreign policy free from great power obligations.

3. No economic or political stake in the outcome. 

The first secret meeting between Israeli academics and PLO officials took place in January 1993 at a rural manor outside Oslo. By September, a Declaration of Principles on Interim Self-Government Arrangements, commonly referred to as the “Oslo Accord”, had been signed on the White House lawn.

When neutrality was no longer enough 

Although Oslo represented a breakthrough, Norwegian scholar Hilde Henriksen Waage identifies a tension that would prove consequential: Norway’s lack of leverage, the very quality that enabled the initial breakthrough, also meant it had no capacity to enforce the agreement once it was signed. The parties returned to the US for implementation, and Washington’s strategic priorities gradually reshaped what Oslo had produced. 

The lesson is one that European mediation would encounter repeatedly: procedural neutrality enables agreement, but cannot always guarantee its durability. At some point, a mediator needs leverage vis-à-vis normative authority to hold an agreement in place. The small states offered leverage to a limited extent but rarely offered the normative authority needed to enforce the agreements.

In addition, the conflicts these mediators were navigating were also changing. By the mid-twentieth century, domestic and ideological conflicts involving non-state actors were displacing the largely symmetric interstate wars the Concert of Europe had been designed to manage. Mediating between parties who did not recognise each other’s legitimacy required more than a neutral table. It required actors who could shape the normative terms of the negotiation itself. Europe was about to discover that it could play that role, and that doing so would carry costs it had not anticipated.

Post read questions

1. Why is the Congress of Vienna regarded as the foundation of modern European diplomacy? Explain the principle of balance of power as practised under the Concert of Europe.

2. The Concert of Europe institutionalised diplomacy as an instrument of conflict management. Discuss its achievements and limitations.

3. Neutrality can facilitate negotiations but cannot guarantee durable peace. Examine with reference to Norway’s mediation in the Oslo Accords.

4. The effectiveness of a mediator depends not only on impartiality but also on leverage. Critically examine in the context of international conflict resolution.

5. Distinguish between balance-of-power diplomacy and neutral third-party mediation. Which model is better suited to contemporary conflicts?

(Sanket Kumar Prajapati is a Doctoral candidate at the Centre for European Studies, Jawaharlal Nehru University, New Delhi. The second part of the article will examine Europe’s evolving mediation role during and after the Cold War.)

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