noun
major nuclear power
Refers specifically to the five nuclear-weapon states recognized by the NPT (US, Russia, UK, France, China). Used in political and diplomatic contexts.
核大国の首脳が軍縮について協議した。
The leaders of the major nuclear powers discussed disarmament.
NPTでは、核大国と非
Under the NPT, the obligations of nuclear-weapon states and non-nuclear-weapon states differ.