list of states with nuclear weapons

References & Edit History

Images

Diagram of a thermonuclear warhead cut open to reveal internal components, including a primary fission trigger with deuterium-tritium gas, plutonium-239, beryllium, and chemical explosives, and a secondary fusion device with uranium-235, lithium deuteride fusion fuel, and a uranium case, all labeled for educational reference.

World map titled “Status of World Nuclear Forces” with legend: gray (0), light yellow (1–100), orange (100–200), dark orange (200–300), dark red (4,000–4,500).

list of states with nuclear weapons: Media

Images

Diagram of a thermonuclear warhead cut open to reveal internal components, including a primary fission trigger with deuterium-tritium gas, plutonium-239, beryllium, and chemical explosives, and a secondary fusion device with uranium-235, lithium deuteride fusion fuel, and a uranium case, all labeled for educational reference.

Thermonuclear warhead

The blast from a primary fission component triggers a secondary fusion explosion...

Encyclopædia Britannica, Inc.

Interactives

World map titled “Status of World Nuclear Forces” with legend: gray (0), light yellow (1–100), orange (100–200), dark orange (200–300), dark red (4,000–4,500).

Status of world nuclear forces

World map showing estimated nuclear weapon counts by country using a color scale...

Encyclopædia Britannica, Inc.