Iran’s Security Chief Escalates Hormuz Blockade Threat as Nuclear Talks Stall

Iran’s Supreme National Security Council chief Mohammad Rezaei has hardened the regime’s negotiating position on the Strait of Hormuz, declaring that the waterway will remain closed unless Washington accepts conditions Tehran has not publicly detailed.

In statements made September 23, Rezaei tied the reopening of one of the world’s most critical energy chokepoints to what he called Iran’s “seven conditions.” According to reports from regional sources, he stated: “Americans should not waste time and must accept our conditions. For the Strait of Hormuz to open, the conditions must be realized.” He added that if the U.S. rejects these terms, “the strait will not open and no negotiations will take place.”^[1]

The move represents a marked shift in how the regime frames negotiations with the Trump administration. In mid-September, when Trump suggested Iran was eager for a deal, Rezaei had already signaled the regime’s refusal to return to previous diplomatic frameworks. “We will not go back to the diplomacy of the past, to the understandings in Islamabad and the period before them,” he said at that time, indicating the regime views any return to the 2015 nuclear deal framework as unacceptable.^[1]

This escalation follows a pattern of regime messaging that conflates the Hormuz question with broader U.S.-Iran strategic competition. In May, Ebrahim Raisi, the Iranian parliament’s security council spokesperson, had already signaled that closure and reopening would not occur through sudden unilateral action, but rather through either “accepting defeat” or reaching a negotiated settlement that recognizes Iran’s “sovereignty and leadership” over the strait.^[2]

Rezaei’s framing of unmet conditions as the barrier to negotiations differs from typical diplomatic overtures. Rather than listing demands explicitly, the regime is conditioning talks on acceptance of terms it has not disclosed – a tactic that preserves maximum flexibility while maintaining the appearance of a negotiating position. The vagueness also allows the regime to claim later that any U.S. offer falls short of unstated requirements.

The timing of Rezaei’s statements coincides with broader regional tension. In late August, the same security chief had warned that any U.S. military action would trigger Iranian strikes on American “military and economic interests,” describing potential consequences as an “historic disaster.”^[3] That threat, combined with the current Hormuz demand, suggests the regime is attempting to establish a credible coercion strategy ahead of potential military escalation.

The Hormuz closure itself – whether partial or total – would represent one of the regime’s most economically disruptive tools, affecting global oil markets and regional commerce. That the security establishment is now explicitly tying reopening to undefined preconditions signals the regime views the strait as leverage in a broader strategic negotiation rather than as a temporary closure to be resolved through standard diplomatic channels.

For the Trump administration, which has signaled willingness to engage with Tehran, Rezaei’s position presents a tactical problem: the regime is demanding acceptance of terms it will not specify, making any negotiating position impossible to evaluate. Whether this represents genuine preconditions or a rhetorical hardening ahead of potential military confrontation remains unclear.