Tell Congress: 100 Days to Prevent a Dangerous New Nuclear Arms Race October 28, 2025

Eighty years after the atomic bombings of Hiroshima and Nagasaki, the threat of nuclear weapons use is once again rising.

Today marks 100 days until the expiration of New START on February 4, 2026. New START is the last remaining arms control treaty between the United States and Russia. Without a follow-on treaty, there will be no limits on the world’s two largest nuclear arsenals for the first time in more than 50 years.

This moment demands action. Limits on nuclear weapons have helped to keep nuclear weapons in check and reduced the risk of nuclear war. Without a follow-on agreement to New START, we face greater instability, higher risk of nuclear conflict, and an enormous new wave of spending on weapons we should be working to eliminate.

Congress can help steer us toward diplomacy and away from disaster. Two sets of bicameral resolutions — H.Res. 100 and H.Res. 317 in the House and S.Res. 61 and S.Res. 323 in the Senate — are our rallying points. H.Res. 100/S.Res. 61 specifically call for urgent negotiations to replace New START, continued U.S. and Russian compliance with current established limits, and separate engagement with China to reduce nuclear risks. H.Res. 317/S.Res. 323 goes further and calls for the United States to pursue a world free of nuclear weapons as a national security imperative. 

Your voice matters. Urge your Representative and Senators to co-sponsor these resolutions and publicly support a follow-on agreement before New START expires.