Robert Pape (Newsmax)

Robert Pape (Newsmax)

University of Chicago political scientist Robert Pape is warning that the U.S.-Iran conflict could be approaching another dangerous inflection point as an Iranian deadline tied to the U.S. naval blockade reaches its final hours and Tehran considers a potentially consequential change in its nuclear posture.

In a new Substack analysis, Pape argues that an Iranian 45-day deadline following an Aug. 16 decision by Tehran’s Supreme National Security Council reaches its endpoint around Oct. 1.

According to Pape, Iran had reserved the option to renew attacks against U.S. forces if Washington did not lift its blockade of Iranian ports during that period.

Pape stresses that the deadline does not make renewed Iranian attacks automatic.

Rather, he portrays it as a decision point that could test whether Tehran follows through on threats intended to increase the costs of continued U.S. pressure.

“This is the Escalation Trap in its purest form,” Pape writes, arguing that Washington has sought to increase pressure until Iran accepts U.S. terms while Tehran has attempted to raise the costs of that pressure.

The warning comes as Iran’s parliament considers a fast-track “triple-urgency” measure to withdraw from the Nuclear Non-Proliferation Treaty.

First Deputy Speaker Ali Nikzad confirmed Monday that lawmakers were reviewing the proposal amid deepening Iranian distrust of the International Atomic Energy Agency.

Withdrawal would not immediately produce an Iranian nuclear weapon.

Article X of the NPT generally requires a withdrawing state to provide three months’ notice.

But Pape argues that the combination of conventional military pressure and Iran’s increasingly open nuclear debate creates a second potential escalation track.

At the same time, diplomatic channels remain active.

Iran proposed a seven-day roadmap under which Washington would end its naval blockade, waive sanctions on Iranian oil sales, and take other steps, while Tehran would reopen the Strait of Hormuz and restart nuclear negotiations.

President Donald Trump publicly rejected Iran’s proposal, saying its terms were unacceptable.

On Wednesday, however, Iranian Foreign Minister Abbas Araghchi said Tehran had received an official U.S. response through mediators, indicating negotiations have not entirely collapsed.

The Trump administration, meanwhile, has maintained military and economic pressure on Iran while using U.S. forces to protect commercial traffic through Hormuz.

The White House said in August that American forces had cleared Iranian mines from international shipping lanes and escorted nearly 1,500 commercial vessels carrying roughly 750 million barrels of crude.

More recent reporting indicates crude flows through Hormuz have rebounded to nearly 12.5 million barrels per day, approaching prewar levels, although energy markets and regional infrastructure remain under strain.

Pape argues that recent U.S. naval positioning should also be watched for signs Washington is attempting to maintain pressure while reducing the vulnerability of American warships to Iranian missiles.

His interpretation of those movements, however, should be distinguished from independently confirmed U.S. operational planning.

Pape is the founding director of the Chicago Project on Security and Threats. His research has focused extensively on military strategy, coercion, terrorism, and political violence.

For months, Pape has described the conflict through what he calls an “Escalation Trap”: tactical military successes can coexist with deteriorating strategic conditions, encouraging leaders to escalate rather than accept an unfavorable outcome.

He has also warned that prolonged disruption of Gulf energy supplies could drive oil prices higher, fuel inflation, and impose broader economic costs.

Ahead of the U.S. midterms, Pape has separately argued that rising energy prices, casualties, and perceptions of an open-ended Iran war could affect American politics.

Previously, Pape has argued Iran may engage in an October surprise — perhaps even a nuclear test — to undermine Trump’s standing before the midterms.

The immediate question is what Tehran does when its deadline passes — and whether continued diplomacy can prevent the military and nuclear pressure tracks from converging.

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