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Case file

Israel and nuclear weapons

In 2005 Wikipedia's first sentence called it “widely believed to be the sixth country in the world to have developed nuclear weapons and to be one of four nu”. Today it says “widely believed to possess nuclear weapons”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2025 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2025

Israel's possible control of nuclear weapons Israel is widely believed to possess nuclear weapons . Estimates of Israel's stockpile range from 90 to 400 nuclear warheads , and the country is believed to possess a nuclear triad of delivery options: by F-15 and F-16 fighters, by Dolphin-class submarine -launched cruise missiles , and by the Jericho series of intermediate to intercontinental range ballistic missiles . Its first deliverable nuclear weapon is thought to have been completed in late 1966 or early 1967, which, if true, would make it the sixth country in the world to have developed them. Israel maintains a policy of deliberate ambiguity , neither officially denying nor admitting to having nuclear weapons, instead repeating over the years that "Israel will not be the first country to introduce nuclear weapons to the Middle East ". However, in November 2023, amid the Gaza war , the junior Heritage Minister Amihai Eliyahu publicly considered dropping a nuclear bomb over Gaza, which some took to be a tacit admission that Israel possesses such a capability; Prime Minister Benjamin Netanyahu reprimanded and suspended Eliyahu in response. Israel has not signed the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), despite international pressure to do so. It argues that nuclear controls cannot be implemented in isolation of other security issues and that only following the establishment of peaceful relations of all countries in the region could controls be introduced via negotiation of "a mutually and effectively verifiable regime that [would] establish the Middle East as a zone free of chemical, biological, and nuclear weapons". Additionally, comments by then prime minister Yair Lapid in 2022 referring to the ability of "other capabilities" to "keep us alive as long as we and our children are here" has been interpreted as a reference to the need to retain nuclear weapons. Additionally, Israel developed the Begin Doctrine of counter-proliferation and preventive strikes , which seeks to prevent other regional actors from acquiring their own nuclear weapons. The Israeli Air Force conducted Operation Opera and Operation Orchard , which destroyed the Iraqi and Syrian nuclear reactors in 1981 and 2007, respectively. The Stuxnet malware that severely damaged Iranian nuclear facilities in 2010 is thought to have been developed jointly by the United States and Israel. As of 2019, Israel remained the only country in the Middle East believed to possess nuclear weapons. The Samson Option refers to Israel's ability to use nuclear weapons against attackers as a deterrence strategy in the face of existential military threats to the nation . Israel began to investigate nuclear-related science soon after it declared independence in 1948, and, with French cooperation, secretly began building the Negev Nuclear Research Center , a facility near Dimona housing a nuclear reactor and reprocessing plant in the late 1950s. The first extensive details of the weapons program came on October 5, 1986, with media coverage of revelations from Mordechai Vanunu , a technician formerly employed at the center. Vanunu was soon kidnapped by Mossad and brought back to Israel, where he was sentenced to 18 years in prison for treason and espionage . Wisconsin Project on Nuclear Arms Control . Washington Report on Middle East Affairs . Bulletin of the Atomic Scientists . 50 (4): 42. "Colin Powell leaked emails: Israel has '200 nukes all pointed at Iran', former US secretary of state says" . Center for Strategic and International Studies . Federation of American Scientists . Woodrow Wilson International Center for Scholars . The New York Times . The New York Times . "Foreign Relations of the United States, 1964–1968" (historical documents) . Office of the Historian . "China, Iran, Arab nations condemn Israeli minister's statement about dropping a nuclear bomb on Gaza" . [Vanunu blew] the whistle on Israel's secret nuclear activities....It was a decision that led him first to London and the Sunday Times - then to Rome and kidnapping by Israeli intelligence service Mossad - then back to Israel and a long jail sentence. There are <ref group=lower-alpha> tags or templates on this page, but the references will not show without a template or template (see the help page ).

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 1298087486.
Today
In 2005 Wikipedia's first sentence called it “widely believed to be the sixth country in the world to have developed nuclear weapons and to be one of four nu”. Today it says “widely believed to possess nuclear weapons”. Read the current article and compare.
201020152020Oct '232025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.

Then

widely believed to be the sixth country in the world to have developed nuclear weapons and to be one of four nu

Now

widely believed to possess nuclear weapons

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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