Eight years after the United States abandoned the landmark 2015 nuclear deal with Iran, the world finds itself once again teetering on the edge of a crisis that could reshape the Middle East. In the wake of a devastating air campaign in June 2025—where U.S. and Israeli forces struck key Iranian nuclear facilities—President Donald Trump has dispatched envoys to pressure Tehran: permanently give up uranium enrichment, or face the threat of a much larger U.S. attack. The stakes could hardly be higher, with both sides engaged in a high-stakes diplomatic dance and the specter of war looming large.
According to Arms Control Today, the June 2025 U.S. attacks left Iran’s major uranium enrichment facilities in ruins. Yet, they failed to eliminate a critical concern: Iran’s stockpile of 400 kilograms of uranium enriched to 60 percent U-235. This material, if further processed, could be used for nuclear weapons, and its whereabouts remain a mystery. Since the strikes, Iran has limited cooperation with the International Atomic Energy Agency (IAEA), barring inspectors from bombed sites and violating its safeguards obligations. For more than eight months, the IAEA has been unable to verify the status or location of Iran’s most sensitive nuclear material.
Despite the destruction, satellite images from February 2026, published by Vantor and analyzed by the Institute for Science and International Security, show Iranian engineers hard at work. They’ve been clearing debris and reinforcing damaged facilities, particularly at the sprawling Isfahan nuclear complex. Multiple tunnel entrances have been backfilled—a move analysts say is designed to prevent collapse from future airstrikes and to seal access points vulnerable to bunker-busting bombs. "The hardening against attack demonstrates resilience," said Darya Dolzikova, a senior non-proliferation researcher at the Royal United Services Institute in London, in comments highlighted by Vantor. "This is a country that can rebuild if it wants to."
In Geneva, U.S. and Iranian diplomats met on February 26, 2026, for what both sides described as a last-ditch effort to avert renewed hostilities. Iranian officials reported that talks progressed "very intensely and very seriously." While both governments have expressed a desire for a deal, the obstacles are formidable. Trump’s administration, emboldened by what he called an “easy” victory in last year’s conflict, is demanding that Iran permanently abandon uranium enrichment. Trump warned in his State of the Union address, “They were warned to make no future attempts to rebuild their weapons program, in particular, nuclear weapons. Yet they continue. They’re starting it all over. We wiped it out, and they want to start all over again and are at this moment again pursuing their sinister ambitions.”
Yet, as Vantor and non-proliferation specialists note, air power can destroy buildings, but it cannot eliminate scientific expertise, stockpiled material, or the political will to rebuild. Iran’s nuclear program is industrial in scale and supported by decades of accumulated knowledge. Even if known facilities were rendered inoperable, Tehran could reconstitute enrichment elsewhere—especially given Iran’s mountainous geography, which is ideally suited for tunneling and concealment. Facilities like Fordow and Natanz are buried deep under rock, with some key chambers estimated to be tens of meters below the surface, making them difficult targets even for the U.S. military’s most powerful bunker-buster bombs.
Robert Kelley, a former U.S. Energy Department official and ex-IAEA director, told Vantor that a relatively small number of advanced centrifuges could be configured to enrich Iran’s uranium to weapons grade if feedstock is available. Satellite imagery from Natanz shows reconstruction efforts, including a new roof over a damaged pilot fuel enrichment plant and reinforcement work at Pickaxe Mountain, a suspected third enrichment site. These efforts, along with additional fortification at the Parchin military complex—long associated with weapons research—underscore Iran’s determination to preserve its nuclear capabilities.
The risk of renewed conflict is compounded by the scale of Iran’s missile production infrastructure. The Khojir complex near Tehran, for example, is a sprawling industrial site with buildings separated by berms and blast walls, making elimination by airstrikes a daunting task. According to Vantor, eliminating such capacity would likely require repeated strikes, and even then, production could resume elsewhere. Iran’s ties to armed groups in Lebanon, Iraq, Syria, and Yemen also raise the specter of regional retaliation, with the potential to disrupt oil supplies through the Strait of Hormuz—a chokepoint for 20 percent of the world’s oil and oil products.
Diplomatic efforts are further complicated by divergent priorities. While Tehran insists that talks must focus solely on nuclear constraints in exchange for sanctions relief, the Trump administration has demanded verifiable limits on Iran’s ballistic missile production. Israeli leaders, meanwhile, are lobbying Trump to take an even more aggressive stance and have threatened to strike Iran’s missile sites themselves, regardless of any new U.S.-Iran agreement. This hardline approach risks driving Iranian leaders away from negotiations and strengthening arguments within Iran that only possessing nuclear weapons can ensure the country’s security.
Yet, there are glimmers of hope. Iran has signaled that a new agreement is within reach if both sides avoid maximalist demands. On February 26, 2026, Tehran reportedly made an offer closer to suspending uranium enrichment for several years—a significant step, given that Iran’s major enrichment plants and uranium conversion facilities are damaged or idle. For its part, the U.S. could extend targeted sanctions relief, recognize Iran’s right to peaceful nuclear energy as outlined in Article IV of the Nonproliferation Treaty, and allow for limited centrifuge manufacturing and low-level enrichment as part of a regional nuclear fuel consortium.
Experts caution that renewed U.S. or Israeli attacks would be counterproductive and could violate both U.S. law and international norms. Such action would likely unleash Iranian counterattacks and risk a prolonged regional conflict. "Military action is not decisively effective as a counter-proliferation strategy," Dolzikova said. "It can delay. It rarely eliminates." Instead, the U.S. and Iran should focus on pragmatic solutions that address international concerns about Iran’s residual nuclear capabilities, restore IAEA inspections, and remove the threat of a wider war.
Ultimately, the resumption of U.S.-Iranian nuclear talks offers a critical—if fragile—opportunity to reduce proliferation risks and avert a deadly, counterproductive regional conflict. Whether leaders on both sides can seize this moment remains to be seen, but the world is watching closely, hoping diplomacy will prevail over the drums of war.