Building a future
beyond nuclear fear.
We are a hub where thought leaders, innovators, campaigners, and activists convene and take action to move us closer to a world free from nuclear threats.
Ploughshares is a relentless force committed to eliminating the threat of nuclear weapons. As the largest foundation singularly focused on reducing this danger, we grow and amplify the impact of the most effective advocates and organizations in the world through critical funding and trusted field building support.
Nuclear war affects everyone. We raise much-needed awareness to the perils of nuclear weapons development, testing, and use.
Latest from our Story Center
The New START treaty expired—Ploughshares grantees are taking action
Today, New START—the last remaining nuclear arms control treaty between the United States and Russia—formally expired. For the first time in decades, there are no legally binding limits on the world’s two largest nuclear arsenals. At a moment of heightened global tension, the loss of this treaty makes the world even more dangerous. But just…
‘Chess: The Musical’’s Revival is in the Shadow of New START Expiration
A story of two chess grandmasters, a love triangle with a Hungarian refugee, CIA and KGB tactics, and a climax set against the backdrop of Able Archer 83—narrative elements that would seemingly point to a cut-and-dry tragedy. But pair them with operettic pop music written by ABBA, and the result is a bonafide Cold War…
Commemorating the 1966 Palomares Accident
Sixty years ago today in the skies over Spain, a US Air Force B-52 bomber on a nuclear alert mission collided with an aerial tanker causing the deaths of seven airmen. The bomber was carrying four B28 thermonuclear bombs. One fell into the sea and the remaining three bombs landed near the small town of…
9 countries in the world possess nuclear weapons.
Of the approximately 12,121 weapons that exist today, the United States and Russia have a combined total of 10,624, accounting for over 90 percent of the world’s nuclear arsenal.










