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The prohibition on transfer

One state not party — the United States — engaged in conduct in 2021 which was not compatible with the TPNW’s prohibition on transfer of nuclear weapons, by virtue of its export of key components to the United Kingdom’s nuclear arsenal.

A Trident II, or D-5 missile, is launched from an Ohio-class submarine in this undated file photo. The United States has effectively exported a nuclear-weapon system to the United Kingdom.
A Trident II, or D-5 missile, is launched from an Ohio-class submarine in this undated file photo. The United States has effectively exported a nuclear-weapon system to the United Kingdom. Photo: HO/REUTERS/NTB
Compliance and compatibility with the TPNW's prohibition on transfer
Compliance and compatibility with the TPNW's prohibition on transfer
ARTICLE 1(1)(b) - INTERPRETATION