Iran’s chief negotiator drew two non-negotiable “red lines” in nuclear and security talks with the US, revealing the two sides came to the brink of military conflict in the Strait of Hormuz just days ago.
Iran’s chief negotiator drew two non-negotiable “red lines” in nuclear and security talks with the US, revealing the two sides came to the brink of military conflict in the Strait of Hormuz just days ago.

Iran’s chief negotiator hardened the country’s stance in talks with the US, using a national television address on April 18 to declare its nuclear program and the Strait of Hormuz as non-negotiable “red lines.” The comments raise the stakes for a potential diplomatic breakdown and increase conflict risk in the world’s most critical oil chokepoint.
"We have told the other party that there are one or two issues that are not negotiable for us," Mohammad Bagher Ghalibaf, Iran's Parliament Speaker and chief negotiator, said in the televised address. He stressed that while some issues were resolved in the recent round of talks in Islamabad, a final agreement remains a long way off, demanding the US first take steps to build trust.
Ghalibaf revealed that during negotiations on April 11-12, the US and Iranian navies had a near-military confrontation in the Strait of Hormuz after US forces attempted a minesweeping operation. The incident underscores the fragility of the talks, with any disruption to the strait, which handles over 20 percent of global oil consumption, threatening to send crude prices sharply higher.
The standoff signals a significant increase in the risk of a military miscalculation that could trigger a broader market sell-off. The last time tensions flared this high in the Strait in 2019, Brent crude futures jumped over 15 percent in a single week as investors fled to safe-haven assets like gold and the US dollar.
The most alarming detail from Ghalibaf’s address was the revelation of a direct confrontation in the Strait of Hormuz while negotiators were meeting. He recounted telling the US delegation, "We are right on this border line, and if you take one more step, we will definitely fire." According to Ghalibaf, the US side requested 15 minutes and then ordered its vessels to retreat.
Ghalibaf characterized the American presence as a "maritime blockade" and a "foolish" decision. He asserted Iran's control over the strategic waterway, stating that while Iran welcomes normal passage for global traffic, "those who act as enemies in this war... should not pass easily." This rhetoric, combined with the recent incident, suggests Iran is prepared to enforce its red lines with military force.
Ghalibaf also explicitly linked the normalization of passage through the Strait of Hormuz to the implementation of a ceasefire in Lebanon. He stated that the first session of the Islamabad talks was a 2-hour and 15-minute meeting focused entirely on the Lebanon ceasefire, calling it "the most important of those commitments" required before formal negotiations could proceed.
The path to the next round of talks remains uncertain. While US officials indicated representatives would arrive in Islamabad on April 20, Iran’s Tasnim News Agency reported that Tehran has not yet decided whether to send a team, stating "as long as there is a maritime blockade, there is no negotiation."
According to Raz Zimmt, an Iran expert at Israel’s Institute for National Security Studies, Ghalibaf's hardline stance reflects a need to build consensus internally between pragmatists seeking to avoid war and hardliners in the Islamic Revolutionary Guard Corps. Zimmt noted that this balancing act makes it difficult for Tehran to be seen as offering any major concessions.
This article is for informational purposes only and does not constitute investment advice.