Today, Japan has no known nuclear weapons programs. It is a signatory in good standing of the Nuclear Non-Proliferation Treaty and has enacted domestic legal prohibitions against producing nuclear weapons.

Beginning in the mid-1930s, Japan conducted numerous attempts to acquire and develop weapons of mass destruction. The 1943 Battle of Changde saw Japanese use of both bioweapons and chemical weapons, and the Japanese conducted a serious, though futile, nuclear weapon program.

2018年10月11日 · Japan is a member and strong proponent of all the nuclear nonproliferation treaties and regimes, and has never developed a nuclear weapons program of its own. Japan’s nuclear disarmament and nonproliferation policy is comprised of four pillars: Tokyo’s reliance on the U.S. extended nuclear deterrent.

2009年2月19日 · Japan's nuclear power program based on reprocessed plutonium has aroused widespread suspicion that Japan is secretly planning to develop nuclear weapons. Japan's nuclear technology and ambiguous nuclear inclinations have provided a considerable nuclear potential, becoming a "paranuclear state."

Japan has maintained a strong commitment to non-proliferation and disarmament since signing the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in 1968. Although Japan does not possess any actual nuclear weapons, it does possess some limited capabilities for …

2024年5月7日 · Amidst rising global tensions, Japan faces a “nuclear dilemma” of relying on U.S. nuclear deterrence while also advocating for a world without nuclear weapons. The war in Ukraine sparked debates on Japan’s security and even nuclear sharing.

As the only country to have ever suffered atomic bombing during wartime, Japan has actively been leading international efforts for nuclear disarmament and non-proliferation.

2025年1月16日 · Japan has been promoting real change by calling on all nuclear weapon states to take measures toward nuclear disarmament while increasing transparency in military armaments. Click for the latest information on the North Korean nuclear issue and Japan's policy and actions in this area.

2023年6月1日 · The contemporary security context has sharpened Japan’s dilemma regarding nuclear weapons. Japan is surrounded by several nuclear-armed neighbours and depends on US extended deterrence rather than its own nuclear deterrent.

2025年1月8日 · During World War II, the Empire of Japan embarked on a nuclear weapons program. However, unlike some other countries, Japan did not conduct any nuclear weapon tests. The program was active from 1940 to 1945, but it faced numerous challenges and ultimately did not produce a functional weapon.