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Formerly a university teacher, I am now a freelance writer specialising in the theory and practice of diplomacy from the earliest times until the present. As well as hoping to encourage the study of diplomacy, this site provides periodic updating of my textbook (see immediately below). This page contains some news and views (‘Blog posts’). The contents of the rest of the site can be navigated via the horizonal menu at the top of this page.

Diplomacy: Theory and Practice

G. R. Berridge Diplomacy 6th edition

6th edition
(Palgrave-Macmillan: Basingstoke and New York, 2022)

After Kissinger’s book, the most cited general work on diplomacy on Google Scholar’s diplomacy page.

Amazon customer reviews of earlier editions can be seen here.

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From the back cover:

“This is a highly welcome update for the best general introduction to the theory and practice of diplomacy. It is clear enough to be recommended to undergraduate students, yet sufficiently thoughtful and incisive to be read with profit by practitioners and experts.”
—John W. Young, Emeritus Professor of International History, University of Nottingham, UK

Diplomacy: Theory and Practice is a tour de force in diplomacy scholarship. Geoff Berridge has not only written the definitive text in diplomatic studies; he has done so in a lucid, accessible, and engaging way that sets the gold standard for how books should be written. Weaving together historical cases with contemporary examples, Berridge has given us essential reading for any student of international politics.”
—Marcus Holmes, Associate Professor of Government, College of William & Mary, USA

Ambassadors, Journalists and Spies: FORTHCOMING

31 January, 2026. My latest publication, called Ambassadors, Journalists and Spies: From ancient Greece to the present day, will shortly be available from DiploFoundation. All earnings from its sales will go to this non-profit organization, created in 2002 by the governments of Malta and Switzerland, as an expression of my gratitude for its support for this website over many years. The simplest way for me to explain what the volume is about is to reproduce here the Preface to the volume.

The Arrogance of Ignorance

27 January, 2026. I heard this phrase for the first time way back in the late 1960s in a report from a friend about a fiery seminar debate between political sociologists in which a visiting speaker accused someone who attacked him of having this disposition. Since then I have often had occasion to observe it, particularly on the part of politicians at extreme ends of the political spectrum. But why is ignorance likely to encourage arrogance, which seems counter-intuitive and is more often associated with expertise?

Trump’s ‘Board of Peace’ absurdity

23 January, 2026. Since rightly being denied the Nobel Peace Prize, President Trump has childishly avowed a greater interest in the exciting use of military power, most recently and idiotically in regard to the proposed annexation of Ice … sorry, Greenland, where the USA already has treaty rights to create bases. Perhaps thinking he might need to re-balance and simultaneously come up with another way of keeping the world’s attention, he has launched a ‘Board of Peace’.

Why I’ve put the Arsenal’s logo on the right-hand sidebar

10 December, 2025. As a long time supporter of the Arsenal, I’d been toying with this idea for some time. It became a firm decision after reading in The Guardian that football is on a rising tide of popularity in the USA and that the electrifying Zohran Mamdani, democratic socialist mayor-elect of New York, is a fellow supporter of the Gunners.

US bullying at IMO meeting

4 November, 2025. There has been so much going wrong in international diplomacy since Trump2.0 was inaugurated that I have been driven into silence for want of knowing where to start commenting. However, having learned what happened at a recent IMO meeting I can maintain this Trappist posture no longer.

Up the Iron!

14 April, 2025. The survival of ‘British Steel’ at Scunthorpe – Chinese-owned, thanks to Boris Johnson – is on a knife-edge. For the future of the town and national security, everything possible should be done to keep its blast furnaces going.

New American Ambassador to South Africa?

30 March, 2025. With US-South Africa relations already at a low ebb, on 26 March 2025 the Trump administration announced the appointment of a ridiculously unsuited individual as the new American ambassador to Pretoria. It was widely assumed in the press that this merely needed Senate confirmation, but it might not be as straightforward as that, and certainly should not be.

Oval Office horror show, or How not to do diplomacy

1 March, 2025. On 28 February, the televised ambush of President Zelenskyy in the White House by President Trump and his attack dog, J. D. Vance, vividly illustrates three fundamental lessons of diplomacy. First, leave negotiations to the professionals. Second, conduct these negotiations in private in order to minimise the risk of sabotage by interested outside parties. Third, if sufficiently important, employ heads of state and government to announce any agreement.

US and Russia restoring diplomatic ties?

27 February, 2025. The spin coming out of Moscow that Trump is 'restoring' diplomatic contacts with Russia is rubbish. They might be expanding in personnel terms but they were never broken off.

Will the Five Eyes’ intelligence alliance underpin NATO?

23 February, 2025. In the chapter on secret intelligence in my Diplomacy: Theory and Practice I endorse the common assumption that international ‘liaisons’ and especially formal ‘alliances’ between intelligence agencies have the added value of discreetly supporting diplomatic relationships when these become strained. Unfortunately for NATO, the seismic political changes in Washington are probably undermining the Five Eyes’ alliance itself; this embraces the USA, UK, Canada, Australia and New Zealand.

Prenegotiations on peace in Ukraine?

19 February, 2025. Prenegotiations are so-called because they are procedural and therefore generally come before the first stage of substantive negotiations; unless, of course, the lead negotiator of one of the parties is a self-confessed genius, has a conception of diplomacy that is entirely theatrical and is in a hurry. Thus the publicized phone call by Trump to Putin immediately preceding the US-Russian talks about talks on Ukraine (and other matters) at foreign minister level in Riyadh on 18 February 2025.

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