By: A.R Manj
The long and turbulent history of Iran’s nuclear programme is once again at the center of international concern following Israel’s airstrikes on Iranian nuclear and military facilities on June 13, 2025. The attack, justified by Israel as an effort to curb Iran’s alleged nuclear weapons ambitions, has reignited global debate over a programme that has shaped Middle Eastern geopolitics for over six decades.
Below is a comprehensive review tracing the key milestones in Iran’s nuclear journey—from Cold War-era collaboration with the West to modern-day flashpoints threatening regional and global stability.
Early Years: Western Backing and Ambitions (1957–1979)
Iran’s nuclear ambitions began under the Shah, with full backing from the United States. A 1957 civil nuclear cooperation agreement laid the foundation, followed by the provision of a U.S.-supplied reactor in 1967. By 1974, Iran unveiled an ambitious plan to build 23 nuclear power plants, aiming to generate 23,000 MW of electricity. The programme remained peaceful in public narrative, though its scope signaled strategic aspirations.
Post-Revolution Setbacks and Secrecy (1980s–1990s)
The 1979 Islamic Revolution and the Iran-Iraq War disrupted nuclear development. Western cooperation ceased, and the U.S. labeled Iran a state sponsor of terrorism in 1984. Iran turned to clandestine channels, notably acquiring centrifuge designs from the Abdul Qadeer Khan network in 1987. By the 1990s, Washington began enacting sweeping sanctions targeting nuclear proliferation and foreign investment in Iran’s energy sector.
Global Scrutiny and Revelations (2002–2006)
Iran’s covert facilities in Natanz and Arak were exposed in 2002, triggering alarm. In response, the IAEA demanded full transparency. Initial cooperation gave way to tension: Iran briefly suspended enrichment under European pressure but resumed uranium processing in 2005. The UN Security Council adopted binding resolutions and imposed sanctions following Iran’s enrichment milestone in 2006.
Conflicting Assessments and Escalation (2007–2012)
A 2007 U.S. intelligence report stated Iran had halted weapons development in 2003, but skepticism remained. Iran ramped up enrichment to 20% by 2010, prompting a new wave of sanctions from the UN, U.S., and EU. International fears grew amid evidence of military-related nuclear activities and expanding facilities at Fordow and Natanz.
Breakthroughs and the JCPOA (2013–2016)
With Hassan Rouhani’s election in 2013 came a shift toward engagement. A landmark interim agreement in 2013 led to the 2015 Joint Comprehensive Plan of Action (JCPOA), widely regarded as a diplomatic breakthrough. Iran accepted stringent limits and inspections in return for sanctions relief. The IAEA verified Iran’s compliance, although missile testing and political tensions persisted.
U.S. Withdrawal and Deterioration (2018–2020)
In 2018, President Donald Trump unilaterally exited the JCPOA, reimposing sanctions and reversing years of diplomacy. Iran gradually exceeded enrichment limits, culminating in its full abandonment of the deal after the U.S. assassination of General Qassem Soleimani in 2020. Satellite imagery and IAEA reports pointed to renewed activity, increasing fears of a nuclear breakout.
Stalemates and Rising Tensions (2021–2022)
Efforts to revive the JCPOA under President Biden faltered amid Iran’s political shifts and hardline leadership under Ebrahim Raisi. Uranium enrichment reached 60%, edging closer to weapons-grade levels. Talks dragged on inconclusively, while Iran’s domestic unrest and Western mistrust deepened the stalemate.
Return to the Brink (2025)
In a dramatic turn, negotiations resumed in 2025 despite previous Iranian denouncements. However, rising tensions—including U.S. military warnings, growing uranium stockpiles, and heightened IAEA scrutiny—set the stage for crisis. On June 13, Israel launched a preemptive strike on Iran’s nuclear infrastructure, citing the need to prevent a nuclear-armed Iran. Tehran maintains its programme is solely for peaceful purposes.
Conclusion
Iran’s nuclear programme, born in partnership with the West, has become one of the most divisive and destabilizing issues in international relations. Over the decades, it has triggered wars of rhetoric, sanctions, covert operations, and now direct military confrontation. With diplomacy hanging in the balance and regional volatility at a peak, the next chapter in this saga may prove to be the most consequential yet.
