Russia criticises US as final nuclear warhead treaty set to expire Experts have warned that the expiry of the US-Russia New START treaty could spark a fresh nuclear arms race.Share this: Russia says will act responsibly despite New START nuclear treaty expiryDateFebruary 5, 2026In relation toAl-JazeeraLast US-Russia nuclear treaty is expiring: Does it really matter?DateFebruary 3, 2026In relation toAl-JazeeraRussia says it will stick to limits of expired nuclear treaty if US doesDateFebruary 11, 2026In relation toAl-Jazeera