Relying on plutonium produced at Dimona, Israel has had the ability to fire nuclear warheads since the early 1970s, according to that article, co-authored by Hans M. Kristensen, director of the Nuclear Information Project with the Federation of American Scientists, and Matt Korda, a researcher at the same organization.

President Donald Trump says the U.S. military struck three sites in Iran, inserting itself into Israel’s effort to decapitate the country’s nuclear program in a risky gambit to weaken a longtime foe amid Tehran’s threat of reprisals that could spark a wider regional conflict.