The United Kingdom's decision to boost its nuclear warhead stockpile would breach its obligations under the 1970 Nuclear Nonproliferation Treaty, U.N. Secretary-General António Guterres' spokesperson Stéphane Dujarric said on Wednesday.
Dujarric told a daily press briefing that the U.K.'s plans would violate the treaty's Article VI, which commits nations to "pursue negotiations in good faith on effective measures relating to cessation of the nuclear arms race at an early date and to nuclear disarmament, and on a treaty on general and complete disarmament under strict and effective international control."