Why It Matters

The Senate Foreign Relations Committee hearing on December 10, 2025, examines the most consequential shift in global nuclear strategy since the Cold War ended. At stake is the future stability of the international security system.

The core stakes:

The New START treaty—the last bilateral nuclear agreement between the U.S. and Russia—expires in February 2026 with no replacement negotiations underway. After expiration, neither superpower will face quantitative limits on deployed strategic warheads. Simultaneously, China is executing the most rapid nuclear expansion in modern history, adding roughly 100 warheads annually and completing over 350 new ICBM silos.

Who is affected:

  • The U.S. military: Grappling with a $1.7 trillion modernization program while potentially facing two peer nuclear competitors simultaneously
  • American allies: NATO and Indo-Pacific partners confronting a strategic environment where arms control no longer constrains adversaries
  • Global civilians: The post-Cold War era of nuclear reduction is ending, with emerging weapons systems creating novel escalation pathways

The fundamental tension:

Republicans emphasize military modernization and argue arms control is obsolete without China’s participation and Russian compliance. Democrats warn that abandoning arms control creates a "Cold War–like nuclear arms race" and call for renewed diplomatic efforts.

Broader Context

The hearing arrives as the post-Cold War nuclear order definitively collapses. Russia has proposed only a one-year extension of New START, leaving both superpowers potentially unbound by warhead caps for the first time in decades.

China now possesses approximately 600 warheads and is doubling its arsenal. In September 2025, China publicly displayed its complete nuclear triad for the first time, signaling potential parity by the mid-2030s.

Russia continues provocative posturing—it threatened to resume nuclear weapons testing and has withdrawn from existing treaties. Beyond traditional weapons, an arms race in anti-satellite weapons is emerging in space, while the U.S. trails rivals in hypersonic missile development.

According to SIPRI Yearbook 2025, "the era of reductions in the number of nuclear weapons in the world…is coming to an end."

The Agenda

The hearing will convene at 419 Dirksen Senate Office Building to address breakdowns in arms control treaties, military modernization by China and Russia, and nuclear proliferation threats.

The committee’s composition reflects deep partisan divisions. Republicans advocate "peace-through-strength" strategies emphasizing military modernization. Democrats call for renewed diplomatic efforts and adherence to arms control frameworks.

Witness backgrounds were not specified, though testimony may address:

  • New START treaty status and potential expiration
  • China’s rapid nuclear expansion and arms control refusal
  • Iran’s nuclear program compliance
  • U.S. nuclear modernization costs and strategic necessity

Between The Lines

Republican Perspectives:
Senator Jim Risch (R-ID) emphasizes that future arms control requires verification, enforcement, and Chinese participation. Senator John Cornyn (R-TX) has advocated for demanding complete nuclear disarmament from Iran. Senator Rick Scott (R-FL) introduced the Taiwan PLUS Act to strengthen defense cooperation as deterrence against Chinese invasion.

Democratic Perspectives:
Senator Jeff Merkley (D-OR) warns the U.S. risks a "Cold War–like nuclear arms race" through current modernization spending. Senator Chris Van Hollen (D-MD) has criticized policies he believes are unnecessarily escalatory. Senator Chris Coons (D-DE) emphasizes diplomatic solutions to prevent wider conflict.

Competitive Landscape

Multiple advocacy organizations are actively lobbying Congress ahead of the hearing.

Council for a Livable World has spent $40,000 each quarter throughout 2024-2025, focusing on the National Defense Authorization Act. The group targets specific nuclear weapons systems including the Ground Based Strategic Deterrent and Sea-Launched Cruise Missile-Nuclear.

Nuclear Threat Initiative (NTI) has spent over $148,000 in recent quarters, lobbying on New START consequences, the international testing moratorium, and support for the International Atomic Energy Agency.

The Bottom Line

The hearing examines a fundamentally transformed nuclear landscape. Traditional bilateral arms control frameworks face obsolescence as a "three-body problem"—simultaneous competition with Russia and China—complicates diplomacy. Emerging domains including hypersonic missiles and anti-satellite weapons are accelerating beyond existing governance structures. The committee will debate whether traditional arms control remains viable or whether new strategic frameworks are required to manage risks in an era where nuclear arsenals are expanding across multiple state actors and technological domains.

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