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Posts by Rex Brynen

Panda and Reddie: On (AI) Wargaming and Nuclear War At War on the Rocks, Ankit Panda and Andrew Reddie have written a must-read piece on AI and wargaming, the importance of which extends well beyond nuclear crisis. Recent experiments placing large language models in simulated nuclear crises have produced alarming headlines. “Bloodthirsty” AI systems escalate conflicts, threaten nuclear strikes, and behave erraticallyunder simulated pressure.

Panda and Reddie: On (AI) Wargaming and Nuclear War

At War on the Rocks, Ankit Panda and Andrew Reddie have written a must-read piece on AI and wargaming, the importance of which extends well beyond nuclear crisis. Recent experiments placing large language models in simulated nuclear crises have…

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Wargaming… this Today, President of the United States Donald Trump threatened to commit war crimes in Iran—a threat that is, in and of itself, a war crime. (Under the laws of war, measures of intimidation intended to sow terror among a civilian population are prohibited, as is direct and public incitement of genocide.) This follows, of course, an American attack on Venezuela aimed at seizing effective control over its oil resources; the summary execution of suspected drug couriers in the Caribbean by the US military; endorsement of ethnic cleansing of Palestinian from Gaza; the abandonment of Ukraine and closer alignment with Russia; frequent comments about annexing Canada; adoption of a national security strategy aimed against European liberal democracies; threats to seize Greenland by force from a NATO ally (alarming Europe sufficiently to spark…

A decade of PAXsims articles on gaming Donald Trump.

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The Green Lantern Theory of Geopolitics held that you can do anything, it’s just a matter of willpower. This administration runs on the Red Lantern Theory: Any failure to achieve a geopolitical goal can be ascribed to insufficient cruelty & brutality.

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Unfortunately I have very little doubt at on how that is going to turn out.

If there ever was anyone at that level prepared to burn down a career over illegal target selection, they got purged by Hegseth a while ago.

The military will not save you from the voters' bad political decisions.

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Facilitating Learning in Tabletop Exercises and Wargames: A Field Guide Grounded in Adult Learning Science PAXsims is pleased to share Facilitating Learning in Tabletop Exercises and Wargames: A Field Guide Grounded in Adult Learning Science, by Robert Domaingue. Robert Domaingue is a retired Foreign Service Officer with the U.S. State Department, who worked in Strategic Game Design within the Bureau of Conflict and Stabilization Operations (CSO). His doctorate, from the University of Wisconsin-Madison, is in adult education with a focus on experiential learning.

Newly posted to PAXsims: Robert Domaingue's Facilitating Learning in Tabletop Exercises and Wargames: A Field Guide Grounded in Adult Learning Science (55pp)

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AI‑Assisted Playtesting of a PRIME Matrix Game: Systemic Tendencies in a Draft‑Night Decision Simulation The following article was written for PAXsims by Joe Chretien. Joe Chretien is a retired U.S. Army Modeling & Simulations officer and long‑time wargame designer. During his military career, he served in a range of simulation and wargaming roles, including as a developer and facilitator at the U.S. Army War College. He now works as the Deputy Director of the Sustainment Exercise and Simulation Directorate (SESD), where he leads a mixed military–civilian team and oversees contractor support to Army sustainment training and analysis.

Joe Chretien discusses his AI NFL draft matrix game (and its implications for professional wargaming).

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Connections North 2026 conference report On March 14, Connections North held its tenth annual professional (war)gaming conference, this time at the National Capital Region Officers’ Mess in Ottawa. As is a Connections North tradition, it snowed heavily. The theme this year was (War)gaming Canadian Security in an Era of Strategic Uncertainty. Canada’s security environment is being reshaped by an unusually volatile convergence of external and internal strategic pressures.

Connections North 2026 conference report

On March 14, Connections North held its tenth annual professional (war)gaming conference, this time at the National Capital Region Officers’ Mess in Ottawa. As is a Connections North tradition, it snowed heavily. The theme this year was (War)gaming Canadian…

1 month ago 3 0 0 0
Simulation and gaming miscellany, March 2026 PAXsims is pleased to present some recent items on conflict simulation and serious (and not-so-serious) gaming that may be of interest to our readers. PAXsims is made possible due to the generosity of our Patreon supporters. The annual Connections North professional wargaming conference will be held in Ottawa on Saturday, March 14. The theme this year is (War)gaming Canadian Security in an Era of Strategic Uncertainty…

Simulation and gaming miscellany, March 2026

PAXsims is pleased to present some recent items on conflict simulation and serious (and not-so-serious) gaming that may be of interest to our readers. PAXsims is made possible due to the generosity of our Patreon supporters. The annual Connections North…

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Conflict simulation at McGill (2026 edition) It is Winter 2026 term at McGill University and once again I'm teaching my POLI 452 conflict simulation course. The core of the course is eight game design projects, each undertaken by a group of five students. The projects are chosen by me, based on proposals submitted at the start of the year. In making that selection I try to balance the quality and feasibility of the proposals with the need to offer a different topics that will appeal to the forty students in the class.

Conflict simulation at McGill (2026 edition)

It is Winter 2026 term at McGill University and once again I'm teaching my POLI 452 conflict simulation course. The core of the course is eight game design projects, each undertaken by a group of five students. The projects are chosen by me, based on…

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Simulation & Gaming (April 2026) The latest issue of Simulation & Gaming 57, 2 (April 2026) is now available. Editorial How to Leverage Insights From Games and Gamification – the Road Ahead Marlies P. Schijven and Toshiko Kikkawa Research Articles Synergistic Integration of Artificial Intelligence and Gamification in University Finance Trading Simulation Labs Gordon Yuan The Intervention Model Illustrates the Use of “Cultural Games” to Enhance Multiple Intelligences, Particularly “Interpersonal Intelligence,” in Children With Disabilities, Especially Those With Down Syndrome …

Simulation & Gaming (April 2026)

The latest issue of Simulation & Gaming 57, 2 (April 2026) is now available. Editorial How to Leverage Insights From Games and Gamification – the Road Ahead Marlies P. Schijven and Toshiko Kikkawa Research Articles Synergistic Integration of Artificial Intelligence…

1 month ago 1 1 1 0
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Payne: AI and simulated nuclear crises A recent paper by Kenneth Payne (King's College London) on the strategic behaviour of various LLM AI models in a wargame is receiving considerable attention. Today’s leading AI models engage in sophisticated behaviour when placed in strategic competition. They spontaneously attempt deception, signaling intentions they do not intend to follow; they demonstrate rich theory of mind, reasoning about adversary beliefs and anticipating their actions; and they exhibit credible metacognitive self-awareness, assessing their own strategic abilities before deciding how to act.

Payne: AI and simulated nuclear crises

A recent paper by Kenneth Payne (King's College London) on the strategic behaviour of various LLM AI models in a wargame is receiving considerable attention. Today’s leading AI models engage in sophisticated behaviour when placed in strategic competition.…

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CEASEFIRE! Posted on behalf of Rebecca Sutton (University of Glasgow). Are you an educator or trainer who is interested in using the CEASEFIRE! negotiation skills video game in your course/training? Look no further... The CEASEFIRE! Toolkit for Trainers and Educators is here. Free to download on the CEASEFIRE! Peace Game Project Website, the Toolkit makes it effortless for you to integrate the CEASEFIRE!

CEASEFIRE!

Posted on behalf of Rebecca Sutton (University of Glasgow). Are you an educator or trainer who is interested in using the CEASEFIRE! negotiation skills video game in your course/training? Look no further... The CEASEFIRE! Toolkit for Trainers and Educators is here. Free to download on…

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Violent and non-violent death tolls for the Gaza conflict: new primary evidence from a population-representative field survey This first independent population survey of mortality in the Gaza Strip shows that violent deaths have substantially exceeded official figures whereas the demographic composition of casualties aligns ...

Violent and non-violent death tolls for the Gaza conflict: new primary evidence from a population-representative field survey - The Lancet Global Health www.thelancet.com/journals/lan...

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Connections North 2026 conference programme The draft programme for the 2026 Connections North professional (war)gaming conference can be found below. The conference will be held on March 14, in Ottawa. The theme this year is (War)gaming Canadian Security in an Era of Strategic Uncertainty. Connections North 2026 programmeDownload Registration for the conference is via Eventbrite. Information on past conferences can be found here.

Connections North 2026 conference programme

The draft programme for the 2026 Connections North professional (war)gaming conference can be found below. The conference will be held on March 14, in Ottawa. The theme this year is (War)gaming Canadian Security in an Era of Strategic Uncertainty.…

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The Vassal game engine as a support for modeling digital forces The following article was written for PAXsims by Philippe Lépinard, Emma Germain-Leclerc, and Andréa Melo. Philippe Lépinard is an associate professor in information systems at IAE Paris-Est, the university management school of Université Paris-Est Créteil (UPEC). Emma Germain-Leclerc and Andréa Melo are in their second year of the Master's degree in Information Systems Security Management at IAE Paris-Est. Preliminary caution…

The Vassal game engine as a support for modeling digital forces

The following article was written for PAXsims by Philippe Lépinard, Emma Germain-Leclerc, and Andréa Melo. Philippe Lépinard is an associate professor in information systems at IAE Paris-Est, the university management school of…

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Good morning. Looking for insights into where and how I might begin writing for any Canadian outlets to tie US / Canadian politics together, and help people here understand WTF happened to the US, and why it's so dangerous even if a full democracy.

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Hybrid warfare and NATO cohesion Source: WSJ. In December, Die Welt newspaper and the German Wargaming Center of the Helmut-Schmidt University of the German Armed Forces held a wargame examining the hypothetical Russian seizure of the Lithuanian city of Marijampole. The exercise involved 16 former senior German and NATO officials, lawmakers and security experts. According to the Wall Street Journal (paywalled): In the exercise, Russia used the pretext of a humanitarian crisis in 

Hybrid warfare and NATO cohesion

Source: WSJ. In December, Die Welt newspaper and the German Wargaming Center of the Helmut-Schmidt University of the German Armed Forces held a wargame examining the hypothetical Russian seizure of the Lithuanian city of Marijampole. The exercise involved 16 former…

2 months ago 6 2 0 0
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CFP: Connections Online 2026 The Connections Online 2026 wargaming conference will be held on 20-25 April on the theme of "wargaming soft factors: moving beyond the kinetics." Wargames have traditionally focused on "hard factors" - movement rates, firepower scores, penetration values. But all wargamers (especially professional wargamers) understand that there is more than just the kinetics. Command and control, morale, and even cognitive factors are tremendously important - yet are often given short shrift.

CFP: Connections Online 2026

The Connections Online 2026 wargaming conference will be held on 20-25 April on the theme of "wargaming soft factors: moving beyond the kinetics." Wargames have traditionally focused on "hard factors" - movement rates, firepower scores, penetration values. But all…

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Serious Game Arcade 2026: Games and Sustainability The 2026 Serious Games Arcade will take place on 10 June 2026 (at Concordia University in Montreal and hybrid) on the topic on "Games and sustainability." How are games and sustainability intertwined? Or broken? Serious games offer a chance to educate, express, and intervene, where play becomes a tool for comprehension and exploration. In a climate-shifting world, we see game makers and players expressing climate anxieties about the impact of human industry on our globe.

Serious Game Arcade 2026: Games and Sustainability

The 2026 Serious Games Arcade will take place on 10 June 2026 (at Concordia University in Montreal and hybrid) on the topic on "Games and sustainability." How are games and sustainability intertwined? Or broken? Serious games offer a chance to…

2 months ago 1 1 0 0
AWL Wargaming Conference 2026 The 2nd Edition of the WARGAMING CONFERENCE AWL will take place at the Military University of Land Forces (AWL) in Wrocław, Poland on 15-17 September 2026. The theme this year will be "Comprehensive Security: Advancing Wargaming in Military and non-Military Domains." If you are interested in joining a panel discussion or delivering a presentation, contact the organizers at: conferencewargame@awl.edu.pl. They are also accepting inquiries from industry representatives wishing to showcase games, systems, solutions, or hardware. General attendee registration is not open yet. The official registration form will be published closer to the event date.

AWL Wargaming Conference 2026

The 2nd Edition of the WARGAMING CONFERENCE AWL will take place at the Military University of Land Forces (AWL) in Wrocław, Poland on 15-17 September 2026. The theme this year will be "Comprehensive Security: Advancing Wargaming in Military and non-Military Domains."…

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Assises Françaises d’Étude du Wargaming 2026 The 2026 Assises Françaises d'Étude du Wargaming will take place on 23 April in Lyon. Nous vivons une situation d’imbrication de crises multiples : financières (par exemple celle des subprimes de 2008 dont la crise de la dette publique française est en partie une conséquence), sanitaires (Covid-19), géopolitiques (guerre en Ukraine, guerre de ses proxys et de l’Iran contre Israël), environnementales (climat, biodiversité), sociales (migrations, inégalités), et informationnelles (désinformation, guerres narratives).

Assises Françaises d’Étude du Wargaming 2026

The 2026 Assises Françaises d'Étude du Wargaming will take place on 23 April in Lyon. Nous vivons une situation d’imbrication de crises multiples : financières (par exemple celle des subprimes de 2008 dont la crise de la dette publique française est en…

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Simulation and gaming miscellany, 26 January 2026 PAXsims is pleased to present some recent items on conflict simulation and serious (and not-so-serious) gaming that may be of interest to our readers. Many thanks to Catherine Philippe and Andrew Spearin for suggesting material for this latest edition. In October 2024, the Center for Ethics and the Rule of Law at the University of Pennsylvania ran a tabletop exercise on…

Simulation and gaming miscellany, 26 January 2026

PAXsims is pleased to present some recent items on conflict simulation and serious (and not-so-serious) gaming that may be of interest to our readers. Many thanks to Catherine Philippe and Andrew Spearin for suggesting material for this latest…

2 months ago 1 1 0 0
Serious Play 2026 The Serious Play 2026 conference will take place at Duke University on 5-7 August. Further details can be found at their website.

Serious Play 2026

The Serious Play 2026 conference will take place at Duke University on 5-7 August. Further details can be found at their website.

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Canadian soldiers have been carrying out Donald Trump’s orders As the American president becomes more aggressive, this is becoming a problem

@christysomos.bsky.social "Canadian Brig-Gen Robert McBride is the deputy commanding general... for the [US] 11th Airborne. His role in a division waiting to support ICE is a pointed example of how Canadian personnel are caught awkwardly..."
www.economist.com/the-americas...

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All the more reason to attend the Connections North professional wargaming conference in Ottawa on March 14. paxsims.wordpress.com/2025/12/01/w...

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Connections UK 2026 dates From the organizers of the Connections UK professional wargaming conference: SAVE THE DATE! Connections UK 2026 will be on the 8th - 10th September 2026 at Brunel University, Uxbridge, UK To help us plan for this for the conference we are very interested in how you feel about Connections, and you can help us shape the Conference, not just in the coming year, but also future years. We would be really grateful if you would be able to complete the short (2-3 minute) survey via this link.

Connections UK 2026 dates

From the organizers of the Connections UK professional wargaming conference: SAVE THE DATE! Connections UK 2026 will be on the 8th - 10th September 2026 at Brunel University, Uxbridge, UK To help us plan for this for the conference we are very interested in how you feel…

3 months ago 6 1 0 0
Some recent wargaming podcasts The Wargame is a major five-part series from Sky News and Tortoise which imagines how a Russian attack on the UK could play out – and invites real-life former ministers, military chiefs and other experts to figure out how to defend the country. The Army Mad Scientist podcast The Convergence podcast features Mike Barnett and Joe Chretien from the Sustainment Exercise and Simulation Directorate, Combined Arms Support Command discussing their Sinews of War: Theater Sustainment Operations wargame. Jared Fishman discusses Kriegspiel (and other topics) with Jan Heinemann at the 20 Sided Gamified Podcast.

Some recent wargaming podcasts

The Wargame is a major five-part series from Sky News and Tortoise which imagines how a Russian attack on the UK could play out – and invites real-life former ministers, military chiefs and other experts to figure out how to defend the country. The Army Mad Scientist…

3 months ago 6 1 0 0
AFTERMATH: A Venezuela matrix game From the ever-productive Tim Price comes a matrix game about Venezuela in the aftermath of the removal of Nicolás Maduro. Briefings are provided for six actors: the Venezuelan regime, the Venezuelan military and security services, the opposition, the United States, other external and regional actors, organized crime, and "society, the streets, and informal power"—together with assets, a map, and a basic overview of how to play a matrix game. AftermathDownload If you are interested in developing your own matrix games, you might find the Matrix Game Construction Kit of interest.

AFTERMATH: A Venezuela matrix game

From the ever-productive Tim Price comes a matrix game about Venezuela in the aftermath of the removal of Nicolás Maduro. Briefings are provided for six actors: the Venezuelan regime, the Venezuelan military and security services, the opposition, the United…

3 months ago 1 0 0 0
MIT Summer Wargaming Institute The Summer Wargaming Institute is a four-day "bootcamp"-style program hosted by the MIT Security Studies Program Wargaming Lab on 12-16 July, designed to teach practitioners and scholars how to design and run wargames for research, training, and analysis. Applicants must be PhD candidates or junior faculty in international relations, political science, or related fields or early to mid-career foreign policy/national security professionals. Full details can be found here. The deadline for application is March 1.

MIT Summer Wargaming Institute

The Summer Wargaming Institute is a four-day "bootcamp"-style program hosted by the MIT Security Studies Program Wargaming Lab on 12-16 July, designed to teach practitioners and scholars how to design and run wargames for research, training, and analysis. Applicants…

3 months ago 5 0 0 0
Simulation & Gaming (February 2026) Simulation & Gaming 57, 1 (February 2026) is now available. Editorial We Need Cooperation to Save Our World- and Other Lessons Learned From Gaming Marlies P. Schijven and Toshiko Kikkawa Research Articles Exploring the Usability of Virtual Reality as a Tool to Assess Collective Non-Technical Skills: The Case of Team Communication During a Collaborative Task Yasmina Kebir, Gaelle Nicolas, Samuel Ferreira Da Silva, Pierre Chevrier, Valérie Saint-Dizier de Almeida and Jérôme Dinet…

Simulation & Gaming (February 2026)

Simulation & Gaming 57, 1 (February 2026) is now available. Editorial We Need Cooperation to Save Our World- and Other Lessons Learned From Gaming Marlies P. Schijven and Toshiko Kikkawa Research Articles Exploring the Usability of Virtual Reality as a Tool to…

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