Progress reportedly continues despite efforts by opponents, especially in Iran and Israel, to blow up the discussions.
The decision to scrap the planes has raised concerns that President Joe Biden may not return the United States to a treaty that his predecessor had repudiated.
TPNW States to Meet in January in Vienna
The alleged sabotage of Iran's Natanz nuclear facility comes during a critical phase in the ongoing diplomatic efforts to bring the United States and Iran back into compliance with the 2015 multilateral nuclear deal.
In recent years, the United Kingdom has touted itself as one of the most transparent of the five nuclear-armed states recognized by the nuclear Nonproliferation Treaty (NPT), and its leaders leaned heavily on the fact that it was reducing the size of its nuclear force.
UK Finalizes New Safeguards
Statement from the Arms Control Association