Iran will fully reopen the Strait of Hormuz only if the United States meets a set of conditions led by efforts to halt wars in Lebanon and Gaza, Supreme National Security Council secretary Mohsen Rezaei said on August 27.

The Iranian official’s comments position the waterway, through which about a fifth of the world's oil passes, as inseparable from the wider regional conflict, and came hours before US Central Command said its forces had cleared the strait's shipping lanes of Iranian mines and helped nearly 1,500 commercial vessels transit, a claim that flatly contradicts Rezaei's account of Iranian control.

Rezaei, a former Islamic Revolutionary Guard Corps commander appointed to the security post on August 9, spoke in an interview with Lebanon's Al Manar broadcast on the evening of August 27.

He said Iran had prepared a list of conditions to convey to Washington and was for now permitting limited, temporary passage of ships through the middle section of the strait, with future traffic dependent on progress towards an understanding with Washington.

"He must prove his seriousness in implementing the commitments," Rezaei said of the US position, adding that a "deep valley of mistrust" separated the two sides.

He said the strait could not be separated from the overall regional confrontation and that Washington had to demonstrate good faith before any new trust could form.

Among the conditions Iran raises in any understanding with the United States, Rezaei listed a halt to fighting across West Asia, especially in Lebanon, and an Israeli withdrawal from areas of Lebanese territory it had taken.

He also named an end to the war in Gaza and a stop to Israeli attacks on Syria.

The region had become "an interconnected chain", he said, in which a breakdown of security in any one country raised investment costs and cut development opportunities elsewhere.

Rezaei said Israel could no longer advance towards Beirut's southern suburb or the capital itself, citing losses he said Hezbollah had inflicted over the previous three to four months and the effect of what he called Iran's deterrent threat.

"Beirut's southern suburb and Beirut are a red line," he said, adding that Tehran was following developments "with the utmost seriousness" and that Israel would be forced to withdraw from Lebanese areas it had entered.

On Syria, Rezaei said it was unlikely to enter the fighting in Lebanon, saying the government in Damascus faced numerous problems and that continued Israeli attacks on Damascus and its surroundings had reduced the scope for such an equation.

Rezaei said Iran did not seek war but was preparing for a new phase should confrontation resume, warning that any future war would differ from previous ones.

He said Iran had managed the stages of conflict gradually, from earlier restraint in targeting US bases in Persian Gulf states to a widening of responses to include US positions elsewhere.

He warned that Tehran would answer any intensification of economic pressure with measures targeting US economic interests in the region, describing the US shift towards economic pressure as a sign of the limits of the military option.

Rezaei threatened Israeli Prime Minister Benjamin Netanyahu directly. "We will send him to hell and prove that his major mistakes have brought the end of the Israeli regime closer," he said. He also said "widespread and sacred anger" was building in the Islamic world against Israel.

Rezaei said Iran supported any plan for Islamic unity provided it was inclusive and gave major states equal participation, adding that Iran and Egypt should be founding parties to any such framework rather than states joining a pre-arranged one.

On Turkey, he pointed to the depth of trade ties between the two countries and said it was unlikely Ankara would impose economic pressure on Tehran, recalling Turkey's role as a trade conduit during the 1980-88 Iran-Iraq war.