"The B61-12 is uniquely destabilizing," Wayman said, adding that B61-12 LEP is an "exhibit A of the second nuclear age – a new nuclear arms race for the 21st century."
"According to the International Court of Justice, the United States – and all nuclear-armed nations – have a legal 'obligation to pursue in good faith and bring to a conclusion negotiations leading to nuclear disarmament in all its aspects under strict and effective international control.' Creating new nuclear weapons, while actively undermining ongoing multilateral nuclear disarmament forums such as the Open Ended Working Group, clearly breaches this obligation," he added.
Wayman noted that the presence of B61, B61-12's predecessor, in five NATO countries, namely Belgium, Germany, Italy, the Netherlands and Turkey inflames tensions with Russia.
NNSA formalized the production engineering phase of the B61-12 warhead life extension program, saying it was a "critical element" of the US nuclear triad and the extended deterrent. Its first production unit is planned for 2020 and will be followed by full-scale production.
Head of the Russian Foreign Ministry’s Department for Non-Proliferation and Arms Control, Mikhail Ulyanov, said earlier in the day that US B61-12 nuclear warhead life extension program would lower the threshold for the use of nuclear weapons. He underlined that while Russia would not be dragged into a new arms race amid such actions by the United States, it would "definitely" work to ensure its national security.