Why Israel’s nukes get a pass while Iran is scrutinised

The nuclear programmes of Israel and Iran are often cited by analysts as an example of uneven global enforcement of non-proliferation rules. While Israel is widely believed to possess nuclear weapons, Iran's programme—despite being under international monitoring—has faced decades of scrutiny, sanctions and, more recently, military action.

Here is what explains the disparity:

Different legal obligations under the NPT

According to Al Jazeera, a central factor is the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), which governs how countries develop and monitor nuclear technology.

Iran is a signatory to the treaty and has a safeguards agreement with the International Atomic Energy Agency (IAEA), requiring it to open its nuclear facilities to regular inspections.

Israel, however, has never signed the NPT. As a result, it is not legally bound by the same transparency requirements and does not undergo international inspections.

Israel's policy of nuclear opacity

Israel has long pursued a strategy of "nuclear opacity," neither confirming nor denying that it possesses nuclear weapons.

When asked directly in 2018, Israeli Prime Minister Benjamin Netanyahu said: "We have always said that we won't be the first to introduce it, and we haven't introduced it … It's as good an answer as you will get."

Despite the ambiguity, experts widely estimate that Israel holds between 80 and 200 nuclear warheads. Its programme dates back to the 1950s, developed with foreign assistance, particularly from France, with the Dimona nuclear facility believed to be the centre of plutonium production.

Shawn Rostker, an Astra fellow with the Constellation Institute, said the approach is deliberate: "The logic is fairly straightforward: Ambiguity is meant to preserve deterrence while avoiding some of the diplomatic, legal and political costs that would come with an open declaration, especially given that Israel is not a party to the NPT and continues to sit outside that framework."

He added that a shift in policy appears unlikely under current conditions: "Israel's position has been tied for decades to its regional security environment, and there is little sign that it sees strategic benefit in giving up ambiguity or joining the NPT."

According to Rostker, any change would likely depend on broader regional developments: "A real shift would probably require a much broader regional security arrangement, potentially tied to a Middle East WMD-free zone or a major change in the threat environment, not outside pressure alone."

Iran's monitored but contested programme

Iran's nuclear activities have been under sustained international scrutiny for more than two decades.

Under the 2015 Joint Comprehensive Plan of Action (JCPOA), Iran agreed to limit uranium enrichment in exchange for sanctions relief. Although the United States withdrew from the agreement in 2018, Iran initially continued to comply before later increasing enrichment levels.

As of 2025, Iran is reported to have enriched uranium up to 60%, below the roughly 90% typically associated with weapons-grade material. The IAEA continues to monitor its programme.

Iranian Supreme Leader Ali Khamenei has publicly opposed nuclear weapons, describing them as "against Islamic law."

Geopolitics and selective enforcement

Analysts say the difference in treatment is shaped as much by geopolitics as by legal frameworks.

Ahmed Najar, a Palestinian analyst, said there is "clearly a double standard" in how the two countries are treated, adding that "international norms are applied selectively – rigorously enforced in some cases, and quietly set aside in others."

He also pointed to the lack of clarity surrounding Israel's doctrine: "There is ambiguity not only around capability, but around thresholds for use – and that exists without the accountability mechanisms applied elsewhere."

Najar argued that geopolitical alignment plays a central role: "As long as strategic interests take precedence over consistent application of international law, Israel's nuclear posture is likely to remain largely shielded from scrutiny."

Intelligence assessments versus military action

The gap between intelligence findings and policy responses has also drawn attention.

US Director of National Intelligence Tulsi Gabbard told lawmakers in March 2025 that the United States "continues to assess that Iran is not building a nuclear weapon and Supreme Leader Khamenei has not authorised the nuclear weapons programme he suspended in 2003."

In 2026, following military strikes on Iran, she said the US intelligence community did not believe that Iran had "resumed its nuclear programme after the bombings of June 2025."

Despite such assessments, Iran has faced sustained pressure and military action, while Israel's undeclared but widely assumed nuclear arsenal has not been subject to comparable scrutiny.

Historical development and secrecy

Israel's nuclear programme originated under its first prime minister, David Ben-Gurion, and was designed to remain secret.

Its existence became more widely known in 1986 after revelations by Mordechai Vanunu, a former technician who disclosed details about the Dimona facility.

The broader picture

Taken together, the disparity reflects a mix of legal distinctions, strategic alliances and long-standing policy choices.

Countries that are part of international agreements like the NPT are subject to formal oversight mechanisms, while those outside such frameworks operate with fewer constraints. At the same time, geopolitical relationships influence how strictly rules are applied.

For critics, this creates a system in which enforcement depends not only on compliance, but also on alignment and strategic interests.