Nuclear weapon - Wikipedia
Strategic nuclear weapons are targeted against civilian, industrial, and military infrastructure, while tactical nuclear weapons are intended for battlefield use.
Nuclear weapon | History, Facts, Types, Countries, Blast Radius ...
Nov 11, 2025 · Atomic bombs work with nuclear fission. Two subcritical masses of uranium or plutonium are quickly put together to form a critical mass —that is, enough material to start a …
Atomic Bomb: Nuclear Bomb, Hiroshima & Nagasaki - HISTORY
Sep 6, 2017 · Scientists first developed nuclear weapons technology during World War II. Atomic bombs have been used only twice in war—both times by the United States against Japan at …
Nuclear Weapons - Our World in Data
Explore research and data on nuclear weapons. By Bastian Herre, Pablo Rosado, and Max Roser. This page was first published in August 2013 and last revised in February 2024. The …
Status of World Nuclear Forces - Federation of American Scientists
Mar 26, 2025 · Combined, the United States and Russia now possess approximately 87 percent of the world’s total inventory of nuclear weapons, and 83 percent of the stockpiled warheads …
Where are the world’s nuclear weapons, and who owns them?
Jun 24, 2025 · Recent threats by Russia and President Donald Trump’s deployment of nuclear submarines have brought renewed attention to the world’s nuclear stockpiles. An inert …
Nuclear Arsenal of the United States (2025)
Comprehensive overview of the United States's nuclear weapons program. Detailed data on warhead inventory, deployment status and nuclear capabilities.
Nuclear Weapons: Who Has What at a Glance - Arms Control …
At the dawn of the nuclear age, the United States hoped to maintain a monopoly on its new weapon, but the secrets and the technology for building the atomic bomb soon spread. The …
Transparency in the U.S. Nuclear Weapons Stockpile
From fiscal years 1994 through 2023, the United States dismantled 12,088 nuclear warheads. Since September 30, 2020, the United States has dismantled 405 nuclear warheads. …
Japan Reaffirms No-Nukes Pledge After Official Floats Weapons Idea
TOKYO, Dec 19 (Reuters) - Japan reaffirmed its decades-old pledge never to possess nuclear weapons on Friday after local media reported that a senior security official suggested the …