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Story summary
- As February 5, 2026 expiration of New START nears, U.S. President Donald Trump may let the agreement lapse.
- New START, in effect since 2010, caps each side at 1,550 nuclear warheads and delivery vehicles.
- Russia has suggested maintaining these limits informally, but Trump has shown disinterest.
- Analysts warn that failing to secure an interim deal may increase arsenals and erase arms-control agreements between the United States and Russia.
