Chain Reaction 2026
Save the Date: We are excited to announce the date for Ploughshares’ annual gala, Chain Reaction.
Join us on Tuesday, June 9, 2026, from 5:30-8pm at The Commonwealth Club in San Francisco. The event will feature conversations with top policy and political leaders, experts, and activists in the nuclear field.
Chain Reaction
Tuesday, June 9, 2026 | 5:30-8pm PT
The Commonwealth Club | 110 The Embarcadero San Francisco, CA
Program details to be announced
Click HERE to purchase your tickets. Additional details to follow.
Overview
The last weeks have made the stakes impossible to ignore. U.S. and Israeli strikes on Iran, a president threatening to “end a civilization,” and a nonproliferation order already under strain — this is the moment when the difference between force and diplomacy is not abstract. Force has never stopped a determined nation from pursuing nuclear weapons. Diplomacy has. Join us on Tuesday, June 9, 2026, from 5:30–8pm at The Commonwealth Club in San Francisco for Ploughshares’ annual “not your traditional” gala.
Past Chain Reaction events have featured former Secretaries of State and Defense, Nobel Laureates, senior arms control negotiators, and leading voices in nuclear policy. Speaker announcements for 2026 coming soon!
Please consider supporting the event with a sponsorship:
All Chain Reaction sponsors will receive recognition on all print and electronic event materials, onscreen during the program, on the Ploughshares website, and in the 2026 annual report. Sponsorships include admission for up to eight guests.
Sally Lilienthal Sponsor – $20,000+ A Sally Lilienthal Sponsorship honors the legacy of our founder. A gift of $20,000 allows us to make grants that respond to urgent needs, such as “fly-ins” so constituents can meet directly with congressional offices and advocate against dangerous nuclear legislation. Sally Lilienthal Sponsors are listed as co-chairs of the Host Committee and will receive verbal recognition during the program and VIP seating for you and your guests.
Advocate Level – $10,000 An Advocate level sponsorship helps educate and support the next generation working to eliminate nuclear weapons. For example, $10,000 is the stipend each Ploughshares Nuclear Futures Fellow receives to kickstart an innovative capstone project at their home organization. Advocates receive verbal recognition during the program and VIP seating for you and your guests.
Activist Level – $5,000 As an Activist, you support coordination activities to shift public opinion about nuclear weapons. For example, each of the four members of the Core Team for Ploughshares’ Stop the Nuclear Arms Race Roundtable receive a $5,000 honorarium from Ploughshares for their leadership of cross-organizational efforts to bolster our collective impact on the future of arms control and diplomacy. Includes VIP seating for you and your guests.
Analyst Level – $2,500 As an Analyst, you help to demonstrate the benefits of safer nuclear policies. For example, $2,500 covers the cost of an educational workshop about the legacy of nuclear weapons in a community harmed by America’s nuclear past. In addition, Analysts receive entry for eight guests to the event.
Other ticket options:
President’s Ticket – $1,000 Includes entry for eight guests.
Executive Director’s Ticket – $250 Includes entry for two guests.
Single Ticket – $150 Includes entry for one guest.
For more information about the event or sponsorship opportunities, please contact us at events@ploughshares.org. or 415-668-2244.
Enjoy articles and videos about previous Chain Reaction events. We hope to see you in June!
