Pakistan currently has a stockpile of approximately 170 nuclear warheads—a number that could potentially grow to around 200 by the late 2020s.

This issue’s column reviews the status of Pakistan’s nuclear arsenal and finds that the country currently has a stockpile of approximately 170 warheads, a number that could potentially grow to arou...

This buildup appears to contradict China's obligations under the nuclear Nonproliferation Treaty and could well stimulate nuclear buildups in the United States and India.

France’s nuclear weapons arsenal has remained stable in recent years, but significant modernizations are underway of the country’s ballistic missiles, cruise missiles, submarines, aircraft, and nuclear industrial complex. We estimate that France currently has a nuclear weapons stockpile of approximately 290 warheads, as well as approximately 80 retired warheads awaiting dismantlement.

France’s nuclear weapons arsenal has remained stable in recent years at approximately 290 warheads, but the country is modernizing its ballistic missiles, cruise missiles, submarines, aircraft, and nu...

A scenario of America’s response to an incoming nuclear attack.

The American president has the sole authority to order a nuclear strike, even if every adviser in the room is against it.

Thorsten Benner, et al consider whether America's friends and allies should pursue their own nuclear-weapons capabilities.

Nuclear accidents are a fact of life for as long as these weapons exist.

Deadlier weapons, more nations, autocrats in charge, disinformation and collapsing arms control — the risk of nuclear catastrophe is back.

Deadlier weapons, more nations, autocrats in charge, disinformation, and collapsing arms control — the risk of nuclear catastrophe is back.

Russia's nuclear modernization program has faced significant challenges and delays. We estimate that Russia now possesses about 4,309 nuclear warheads.