What is Samson Option, Israel's nuclear threat that's no longer a theory?

As missile strikes escalate across the region, Israel's nuclear doctrine, the Samson Option, is no longer a Cold War relic but a live deterrent shaping West Asia's most volatile flashpoint

Tensions between Israel and Iran have escalated sharply after ‘Operation Rising Lion’ — Israel’s largest strike on Iranian nuclear sites since the 1981 Osirak raid. Iran has responded with missile and drone attacks, straining Israeli defence systems and prompting fears of wider conflict.

 

With Hezbollah mobilising in the north, Houthi threats rising in the Red Sea, and the possibility of a multi-front war looming, Israeli security doctrine is under renewed global scrutiny. At the centre of that attention is the Samson Option, Israel’s undeclared but long-assumed nuclear last-resort policy.

 

Once regarded as a Cold War-era relic, the Samson Option has re-emerged as a global worry with serious implications for global security, defence markets, and diplomatic stability.

 

 

What is the Samson Option? 

The Samson Option is widely understood as Israel’s nuclear last-resort strategy: threat of massive retaliation if the country’s survival is at stake. The name is derived from a reference of the biblical figure Samson, who brought down a Philistine temple upon himself and his enemies, an allegory for apocalyptic deterrence.

 

Though Israel has never confirmed possessing nuclear weapons, its policy of ‘Amimut’ (Israel’s policy of neither confirming nor denying the possession of nuclear weapons), or deliberate ambiguity, has kept adversaries guessing. However, foreign assessments suggest Israel has 80 to 400 nuclear warheads, with delivery systems spanning land-based missiles, submarines, and aircraft.

 

The doctrine entered public discourse in the 1990s via US investigative journalist Seymour Hersh, who, in his book The Samson Option: Israel’s Nuclear Arsenal and American Foreign Policy, explored Israel’s nuclear journey and its relation with the United States. Since then, Israel hardened its ‘strategic ambiguity’ concept over the possession of a nuclear arsenal.

 

How did Israel build its nuclear arsenal? 

Israel’s nuclear journey began in the 1950s, with the then Prime Minister David Ben-Gurion envisioning a survival insurance policy for the newly-formed Jewish nation. With covert help from France and Norway, Israel established the Dimona nuclear facility, presented publicly as a research centre.

 

By the time of the Six-Day War in 1967, Israel is believed to have constructed its first nuclear weapon.

 

Who is Samson, and why is Israel’s nuclear policy named after him?

 

The doctrine’s name draws from the Book of Judges, where Samson, betrayed, blinded, and imprisoned, sacrifices himself to destroy his enemies. This story, ingrained in Israeli strategic thinking, underlines the nation's message: if its destruction is imminent, it will not go quietly.

 

Yet unlike the doomed biblical hero, modern Israel is a technologically advanced military power. The Samson Option, therefore, is not desperation, but a calculated deterrent, designed to force potential adversaries to think twice.

 

What nuclear weapons does Israel have? 

Although never confirmed, Israel is among the nine nuclear-armed nations alongside the United States, Russia, China, the UK, France, India, Pakistan, and North Korea.

 

Estimates suggest Israel possesses about 90 warheads, with enough plutonium to build up to 200 more, according to the Nuclear Threat Initiative. Its arsenal is believed to include:

 

> Aircraft: Modified F-15, F-16, and F-35 jets capable of carrying nuclear payloads.

> Submarines: Six Dolphin-class submarines, reportedly capable of launching nuclear cruise missiles.

> Ballistic missiles: The land-based Jericho missile family, with a range of up to 4,000 km. Around 24 of these missiles are believed to be nuclear-capable.

 

What was the Vela incident? 

Israel is the only nuclear power which has not openly conducted a nuclear test. The closest indication came in September 1979, when US satellites detected a double flash over the South Atlantic, an event known as the ‘Vela incident’.

 

At the time, US President Jimmy Carter reportedly believed Israel had conducted a nuclear test in collaboration with apartheid-era South Africa. “We have a growing belief among our scientists that the Israelis did indeed conduct a nuclear test,” Carter later wrote in his diaries, which were made public in 2010. Despite speculation, Israel has never confirmed its involvement in the incident.

 

How was Israel’s nuclear arsenal revealed to the world? 

In October 1986, former nuclear technician Mordechai Vanunu exposed Israel’s nuclear programme in an explosive interview with the Sunday Times. Having worked at the Dimona plant for nearly a decade, Vanunu revealed that Israel was capable of producing 1.2 kg of plutonium per week, enough for 12 warheads annually.

 

He also disclosed how Israeli officials had deceived US inspectors during visits in the 1960s with false walls and concealed elevators, hiding entire underground levels of the facility.

 

Vanunu was later abducted by Mossad in Rome, tried in Israel, and sentenced to 18 years in prison, spending over half that time in solitary confinement. Even after his release in 2004, he remains under strict surveillance, barred from foreign travel and media engagement.

 

With West Asia at the edge of a potential multi-front war, Israel’s Samson Option has moved from the realm of whispered deterrence to an option in real-world decision-making. Its existence, unconfirmed but globally acknowledged, adds a nuclear dimension to an already combustible region.