The United States has not conducted a nuclear weapons test since 1992.
January 01, 1992
high
temporal
Historical baseline for U.S. nuclear testing activity.
The United States last detonated a nuclear device as part of a test in 1992.
January 01, 1992
high
temporal
This refers to the last known U.S. nuclear explosive test.
Russia's last known nuclear explosive test occurred in 1990.
January 01, 1990
high
temporal
This refers to Russia's most recent publicly known nuclear test detonation.
Since the 1990s, North Korea is the only nation known to have conducted a nuclear detonation.
January 01, 1990
high
temporal
No other nation is publicly known to have conducted nuclear explosive tests after the 1990s except North Korea.