The actual size and composition of Israel's nuclear stockpile is uncertain, and is the subject of various estimates and reports. It is widely reported that Israel had two bombs in 1967, and that Prime Minister Eshkol ordered them armed in Israel's first nuclear alert during the Six-Day War. It is also reported that, fearing defeat in the October 1973 Yom Kippur War, the Israelis assembled 13 twenty-kiloton atomic bombs.
Israel could potentially have produced a few dozen nuclear warheads in the period 1970-1980, and might have possessed 100 to 200 warheads by the mid-1990s. In 1986 descriptions and photographs of Israeli nuclear warheads were published in the London Sunday Times of a purported underground bomb factory. The photographs were taken by Mordechai Vanunu, a dismissed Israeli nuclear technician. His information led some experts to conclude that Israel had a stockpile of 100 to 200 nuclear devices at that time.
By the late 1990s the U.S. Intelligence Community estimated that Israel possessed between 75-130 weapons, based on production estimates. The stockpile would certainly include warheads for mobile Jericho-1 and Jericho-2 missiles, as well as bombs for Israeli aircraft, and may include other tactical nuclear weapons of various types. Some published estimates even claimed that Israel might have as many as 400 nuclear weapons by the late 1990s. We believe these numbers are exaggerated.
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