Our Global Risk team focuses on addressing and preventing the events and threats that could permanently cripple or destroy humanity. Among them: nuclear war, the next global pandemic, biological attack, and even a collision with a massive near-earth object. Humanity must proactively develop and pursue sound policies to protect against these dangers, including through global cooperation.
Researchers have many questions about the modernization of Pakistan’s nuclear-capable aircraft and associated air-launched cruise missiles.
The SIPRI chapter describes the nuclear weapon modernization programs underway in each nuclear-armed state and provides estimates for how many nuclear warheads each country possesses.
FAS researchers Hans Kristensen and Matt Korda with the Nuclear Information Project write in the new SIPRI Yearbook 2024, released today.
The total number of U.S. nuclear warheads are now estimated to include 1,770 deployed warheads, 1,938 reserved for operational forces. An additional 1,336 retired warheads are awaiting dismantlement, for a total inventory of 5,044 warheads.