In a globalised world where cooperation between countries is ever more frequent and necessary, interpreters in international negotiations play an essential role. From trade agreements to diplomatic treaties, their work ensures that the parties involved can communicate clearly, respecting both the language and the cultural subtleties. Without them, many of the advances we take for granted today in politics, trade or human rights would not have been possible.
History is full of examples where good interpreting made historic agreements possible, or where its absence made conflicts worse. One of the most emblematic cases was the pioneering use of simultaneous interpreting at the Nuremberg trials, where the Nazi leadership was tried. Thanks to an innovative system of microphones and headsets developed by IBM, the proceedings were rendered in four languages in real time, which drastically shortened the trial and laid the foundations of modern interpreting in bodies such as the UN. SeeEl País, 2025).
Another key example came at the Geneva summit of 1985 between Ronald Reagan and Mikhail Gorbachev. Held at the height of the Cold War, this meeting marked a turning point in relations between the United States and the Soviet Union. The interpreters played a part as important as that of the leaders: their precision, discretion and ability to convey not just the words but the tone and the intention helped defuse tension and open a channel of dialogue that would lead years later to nuclear disarmament agreements. SeeInfobae, 2022).
How the interpreter evolved in the history of diplomacy
“Without translation, we would be living in provinces bordering on silence.”
— George Steiner, professor, philosopher and critic
The figure of the interpreter has existed for as long as peoples speaking different languages have been in contact. Long before diplomacy was formalised as a discipline, envoys and royal delegations needed oral translators to convey their messages accurately. These early interpreters, often trained slaves or prisoners, were indispensable for avoiding conflict and securing alliances.
In Ancient Egypt, interpreters were so embedded in the power structure that they could hold hereditary titles and positions of trust. Evidence of their presence has been found in hieroglyphic inscriptions and diplomatic archives such as those of Amarna. Later, during the campaigns of Alexander the Great, interpreters made communication possible between Greeks, Persians, Egyptians and Indians, and were crucial not only in war but also in administering conquered territories.
In the Roman Empire, the “interpretes publici” were official translators recognised by the state, who accompanied ambassadors, traders and the military on their missions. Their work went beyond language: they were cultural mediators too. In the Middle Ages, with the rise of Mediterranean trade and the crusades, the “dragomans”emerged: interpreters specialising in Eastern languages, vital to negotiations between the Islamic and Christian worlds.
As diplomatic relations became professionalised in the early modern period, interpreters began to take on more formal duties. It was not until the twentieth century, however, with the Nuremberg trials and the creation of bodies such as the UN and the EU, that simultaneous interpreting was institutionalised as an indispensable diplomatic tool.
Today, interpreters are highly trained professionals bound by strict codes of confidentiality, who take part in bilateral negotiations, international conferences, peace treaties and global forums.
Key milestones in the history of the diplomatic interpreter
| Period / civilisation | Role of the interpreter | Diplomatic significance |
|---|---|---|
| Ancient Egypt | Royal interpreters with hereditary titles | Facilitated alliances between kingdoms and foreign trade |
| Greece / Alexander the Great | Military and administrative interpreters | Cultural expansion and management of multilingual empires |
| Roman Empire | “Interpretes publici” on official missions | Mediation in treaties and control of the provinces |
| Middle Ages (dragomans) | Arabic-Latin-Turkish interpreters | Christian-Islamic negotiations and Mediterranean trade |
| Early modern period | Interpreters at European courts and embassies | Partial professionalisation of the role |
| Nuremberg trials (1945) | Simultaneous interpreters in 4 official languages | First systematic use of simultaneous interpreting |
| 21st century | Interpreters at the UN, EU, G20, Olympic Games and more | Key tools for contemporary multilateral diplomacy |
Types of interpreting and when each is used
In the international arena, not every setting calls for the same type of interpreting. Choosing the right mode depends on factors such as the number of participants, the setting, the time available and how formal the event is. The main forms of professional interpreting used in negotiations, conferences and global events are set out below.
Simultaneous interpreting
In simultaneous interpreting, the interpreter renders the speech while the speaker is still talking, with a lag of just a few seconds. This mode is normally delivered from a soundproof booth using microphones and headsets, and is the most common at international conferences, multilateral bodies such as the UN or the EU, and large-scale events such as the Olympic Games.
Its main advantage is that it does not interrupt the flow of the speech, allowing continuous communication. It does, however, require intense concentration and close coordination between interpreters, who usually work in pairs and take turns every 20-30 minutes.
Consecutive interpreting
In consecutive interpreting, the speaker pauses every few minutes so that the interpreter can render what has been said. It is common in bilateral meetings, diplomatic interviews, official visits or negotiations where a slower, more controlled pace is preferred.
Although it takes longer, it allows the interpreter to take notes and deliver a more precise rendering. It also makes direct interaction between the parties easier, and it is preferred in contexts where every word has to be chosen with care.
Whispered interpreting (chuchotage)
In this mode the interpreter renders the speech simultaneously in a low voice into the ear of one or two people. It is ideal where only part of the group needs interpreting, such as private meetings or business dinners.
It is commonly used on diplomatic visits, in board meetings or with small delegations. It takes considerable skill to remain discreet without losing accuracy.
Telephone or remote interpreting (RSI)
Thanks to technology, interpreting by telephone or video conference (RSI, remote simultaneous interpreting) is now commonplace. The interpreter can be in another country, connected through specialist platforms.
This mode has grown exponentially since the pandemic and is used in international virtual meetings, cross-border medical care, courts and even press conferences. Economical and flexible though it is, it depends heavily on sound and connection quality.
Modes of interpreting compared
| Type of interpreting | Brief description | When it is used | Main advantages |
|---|---|---|---|
| Simultaneous | Real-time rendering with a lag of seconds | Conferences, summits, multilingual events | Fluency, efficiency, ideal for large audiences |
| Consecutive | Rendering after the speaker pauses | Bilateral meetings, negotiations, official hearings | Precision, control over the message |
| Whispered (chuchotage) | Rendering in a low voice to 1-2 people | Small meetings, diplomatic visits | Discreet, direct, no technical equipment |
| Remote / telephone (RSI) | Interpreting by telephone or video conference | Virtual meetings, healthcare, court hearings | Accessible, flexible, no travel |
Real cases where an interpreter made the difference
Throughout history, the interpreter’s role has gone well beyond simply translating words. At numerous critical moments, their intervention has been decisive in keeping the peace, enabling agreements or even averting conflict. Below are several emblematic cases where interpreting was far more than a linguistic tool: it was a bridge between cultures, ideologies and high-impact decisions.
1. The Nuremberg trials (1945-1946)
After the Second World War, the Nuremberg trials were a milestone not only in international justice but also in the history of interpreting. For the first time, multilingual simultaneous interpreting was used in international legal proceedings.
The defendants, the prosecutors and the judges spoke four different languages: English, German, French and Russian. To stop the trial dragging on for years, IBM developed a headset and microphone system that allowed interpreters to render the proceedings in real time. The system was revolutionary and set today’s standard for interpreting in bodies such as the UN. El País
“Without simultaneous interpreting, the Nuremberg trials could have lasted more than three years instead of ten months.”
— El País, 2025
2. The Reagan-Gorbachev summit in Geneva (1985)
One of the tensest diplomatic moments of the Cold War was the summit between US president Ronald Reagan and Soviet leader Mikhail Gorbachev. Although the talks were about nuclear weapons, opposing ideologies and decades of mistrust, it was a private conversation with only two interpreters present that changed the tone of the meeting.
The interpreters, one for each leader, did not just carry words across: they conveyed emotional nuance, political intent and signals of détente that were fundamental in opening the door to future disarmament agreements. At that moment, an interpreting error could have inflamed tensions rather than easing them. Infobae
3. The disaster averted between Japan and the USA (1941)
A less well-known but highly revealing case occurred just before the attack on Pearl Harbor. During a meeting in Washington, Japanese representatives delivered a diplomatic message that was not interpreted accurately or quickly. Poor linguistic coordination created confusion about Japanese intentions, which contributed to a perception of betrayal after the attack.
This episode underlines how the absence or mishandling of interpreting can have serious geopolitical consequences. Interpreting is not merely a technical matter; it can be decisive in high-risk settings. Researchgate.net
4. Interpreting at the modern Olympic Games
At events such as the Olympic Games, interpreting plays a less visible but equally critical role. Every organising committee has teams of interpreters working at press conferences, logistics meetings, communication with delegations and the resolution of incidents between athletes and officials.
At London 2012, for example, a misunderstanding during a meeting between referees and an Asian delegation was quickly resolved thanks to an interpreter who understood not only the language but also the cultural particularities of the country in question. LinguaServe
| Case / event | Year | Type of interpreting | Context | Impact of the interpreter |
|---|---|---|---|---|
| Nuremberg trials | 1945–1946 | Multilingual simultaneous | International tribunal after the Second World War | Revolutionised modern interpreting and saved years of trial time |
| Reagan-Gorbachev summit | 1985 | Consecutive (in private dialogue) | Bilateral meeting during the Cold War | Enabled mutual understanding and political détente |
| USA – Japan meetings (Pearl Harbor) | 1941 | Diplomatic (failed/deficient) | Negotiations before the attack on Pearl Harbor | Poor interpreting created critical mistrust |
| Olympic Games (various cases: London 2012) | 2012 | Simultaneous and whispered | International sports organisation and coordination | Rapid resolution of intercultural incidents |
The impact of an interpreting error
In international negotiations, where words have to be measured with surgical precision, an interpreting error can completely alter the sense of a message and compromise a strategic decision, a diplomatic relationship or an economic agreement. Unlike other sectors, where a mistranslation can be corrected relatively easily, in diplomacy and politics what is said, and how it is said, carries irreversible weight.
When poor interpreting causes a crisis
One of the most frequently cited examples in modern history took place during the Second World War. In July 1945, when the Allies demanded Japan’s unconditional surrender through the Potsdam Declaration, the Japanese government replied with the term “mokusatsu“, which can be rendered either as “to take note of and consider” or as “to ignore with contempt”. The American interpreters took it in the second sense. This apparent rejection was understood as an official refusal to surrender, and days later the atomic bombs were dropped on Hiroshima and Nagasaki. The outcome cannot be attributed to the error alone, but the linguistic ambiguity played a decisive part in the perception of hostility.
The cost of a slip in commercial negotiations
In business, interpreting errors can also prove costly. In a well-known negotiation between a European multinational and an Asian supplier, interpreting the word “commitment” as “legal obligation” rather than “informal undertaking” created friction, logistical blockages and the temporary suspension of the contract. A multi-million investment was held up for weeks, all because of a misreading of the tone of the speech and its legal context.
When trust breaks down
The interpreter does not just translate words: they also guarantee trust. A misunderstanding put down to poor interpreting can be perceived as disrespect, evasion or even provocation. That is particularly delicate in cultures where language is closely tied to courtesy, honour or hierarchy, as in Asia or the Arab world. In such cases, cultural accuracy matters as much as linguistic accuracy.
For all these reasons, international organisations, multinational companies and governments now require highly qualified professional interpreters, able not only to understand languages but to handle nuance, context, protocol and cultural codes with absolute fidelity.
How do you become an interpreter at major international events?
Becoming an interpreter at large-scale events – political summits, multilateral conferences or the Olympic Games – is a demanding path that combines linguistic excellence, technical training, cultural command and a great deal of practice. It is a challenging career, but also a deeply rewarding one and highly valued in international settings.
Academic training and specialisation
The first step is professional training in translation and interpreting. Many universities offer degrees in Translation and Interpreting, covering specific techniques and working modes (simultaneous, consecutive, whispered and so on) and training memory, mental agility and professional ethics.
On top of that basic training come postgraduate studies or master’s degrees specialising in conference interpreting, legal interpreting or diplomatic interpreting. Among the best-known institutions in Europe for this field are the University of Geneva, the University of Salamanca and the University of Westminster.
Many successful interpreters also specialise in subject areas such as economics, law, international relations or technology, which allows them to add value in technical or high-level settings.
Practical experience and certifications
Practice is key. Many interpreters begin their careers working at local events, trade fairs, delegation visits or courts. Such experience builds fluency, teaches them to manage stress and earns them a reputation.
Seeking certifications that validate professional quality is essential too. Some of the most widely recognised internationally are:
- AIIC (International Association of Conference Interpreters)
- United Nations (through entrance examinations for official interpreters)
- European Parliament and European Commission (which run open competitions for accredited interpreters)
Holding these certifications greatly improves the chances of working at major events and for multilateral bodies.
Key skills and competences
Beyond perfect command of at least two languages (ideally three), a high-level interpreter needs to develop:
- A trained short-term memory: to take in blocks of information and reproduce them faithfully.
- Sustained concentration under pressure: especially in simultaneous interpreting.
- The ability to analyse and synthesise: to render complete ideas rather than word for word, preserving the intention.
- Cultural and diplomatic knowledge: to understand gestures, courtesy formulas and contextual references.
- Confidentiality and professional ethics: crucial when working with leaders, diplomats or executives.
Working at international events
Once their career is established, interpreters can aim to work with bodies such as the United Nations, the European Union, the WHO, FIFA or the International Olympic Committee. To do so, it is advisable to stay active in professional networks, apply to specialist agencies and be available for assignments in different countries.
Some events also run open calls for professional interpreters, particularly when they are held in countries where the interpreter’s language is in demand.
| Element | Description | Examples / resources |
|---|---|---|
| Academic training | Degree in Translation and Interpreting or in Modern Languages | University of Salamanca, University of Geneva, University of Granada |
| Professional specialisation | Master’s in conference, legal or diplomatic interpreting | University of Westminster, EMCI (European Masters in Conference Interpreting) |
| Working languages | Fluent command of at least two languages, preferably three or more | Spanish (A), English (B), French or German (C), among others |
| Modes learned | Simultaneous, consecutive, whispered, remote | Practical training in each mode |
| Professional certifications | Official accreditation through examinations | AIIC, UN, European Parliament, SCIC (Directorate-General for Interpretation, European Commission) |
| Practical experience | Taking part in real events, congresses, forums or trials as a junior interpreter | Trade fairs, local trials, seminars, institutional visits |
| Key skills | Memory, mental speed, concentration, discretion, cultural knowledge | Acquired through practice and continuous training |
| Professional networks | Taking part in international associations and networks | AIIC, ATA, Red Vértice, multilingual interpreting agencies |
| Access to international events | Through competitions, agencies or open calls | UN Careers, SCIC Interpreters, Olympic Organizing Committees, qualified freelance platforms |
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Why precision and confidentiality matter
In international negotiations, precision in interpreting is vital. An error in rendering a single word or phrase can completely change the meaning of a proposal or agreement. In business, for instance, poor interpreting can lead to misunderstandings that damage commercial relationships.
Interpreters must also keep confidential the information they have access to. They often take part in meetings where sensitive strategies, financial data or political agreements are discussed. Professional ethics and discretion are therefore essential qualities in this profession.
The role of interpreters at international events
Interpreters are also essential at international events such as the Olympic Games. At events involving athletes and delegations from all over the world, effective communication is key to the success of the organisation. High-quality translation and interpreting services guarantee inclusion and sound communication at the Olympic Games, making sure that every participant can understand and take part fully.
More than words: interpreters as strategic bridges between cultures
Throughout this article we have seen that interpreters are not mere conveyors of words but key agents in building agreements, mutual understanding and international stability. Their work, often invisible, is what allows complex negotiations to become treaties, political tensions to become dialogue and global events to run with precision and harmony.
From the Nuremberg trials to G20 meetings or the Olympic Games, the interpreter has been fundamental in making sure that the message is understood and also respected in all its cultural depth. Their professional presence is a guarantee of rigour, ethics and neutrality in an ever more interconnected world.
If you are looking for high-quality interpreting services or want to train as a professional interpreter, you are taking the first step towards work that is as strategic as it is human. On a planet that speaks hundreds of languages, real power lies in knowing how to listen and connect.