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New START Expires, Ending U.S.–Russia Nuclear Limits and Inspections

Competing proposals now leave a legal and transparency gap that experts say heightens arms‑race risks.

Overview

  • The treaty lapsed on February 5, removing caps of 1,550 deployed warheads and 700 delivery systems per side and ending formal on‑site verification.
  • Kremlin officials, including Dmitry Peskov and Dmitry Medvedev, warned the post‑treaty landscape will be more dangerous.
  • Russia proposed a one‑year extension but took no new steps ahead of the deadline, and Deputy Foreign Minister Sergei Ryabkov said the lack of a U.S. reply amounts to a response.
  • The United States favors negotiating a new framework, with President Trump suggesting a lapsed pact could yield a “better” deal and signaling a desire to include China.
  • Separate diplomacy continues in Abu Dhabi on the Ukraine conflict, where the White House says special envoy Steve Witkoff will take part in talks.