roadmap

The first round of talks between high-level officials from Iran and the United States in Switzerland has ended, mediators say, with the two sides agreeing on a roadmap towards a final deal to end their more than 100-day war.

Iran and the US agreed to set up communication lines to keep the vital Strait of Hormuz open and end fighting in Lebanon at the marathon talks that ended on Monday, according to mediators.

The teams, led by US Vice President JD Vance and Iranian parliament Speaker Mohammad Bagher Ghalibaf, opened talks on Sunday as part of a two-month negotiating period set out under a preliminary deal agreed last week.

Mediators Pakistan and Qatar said the negotiators reached agreement on a “roadmap towards reaching a final deal within 60 days” with technical talks to continue for the rest of the week at the Swiss resort of Burgenstock.

“Encouraging progress has been made, including the creation of a mechanism for further technical talks,” they said, detailing a contact channel set up to “avoid incidents and miscommunication” over the Strait of Hormuz.

A “deconfliction cell” between the parties and authorities in Lebanon has also been agreed to prevent fighting from erupting there again, they said.

Al Jazeera’s Osama Bin Javaid, reporting from Lucerne, Switzerland, said mediators hailed the constructive engagement, adding that the working groups formed by the negotiators are to begin work immediately.

“A lot of work still remains to be done, and it is not yet clear how these groups will be formulated, in which capacity they will work or what format any future meeting will take,” he said.

Tehran essentially had blocked the Strait of Hormuz in retaliation against the joint attacks by Israel and the US on February 28 that touched off the war.

Lebanon was pitched into the conflict as Iran-aligned Hezbollah attacked Israel in response to the US-Israeli attacks on Iran, prompting Israel to launch a wide-scale bombing campaign and ground invasion of southern Lebanon.

After a series of false starts, Washington and Tehran last week finally signed a memorandum of understanding aimed at ending the war, which included a provision to end fighting in Lebanon between Israel and Hezbollah.

But there have been repeated clashes and Israeli attacks in Lebanon since, which prompted Iran to say days after it had reopened the Strait of Hormuz that it would again close the waterway, through which about a fifth of global oil and liquefied natural gas supplies transited before the war.

“Tireless Pakistani and Qatari mediation has delivered major progress to end Lebanon War,” Iranian Foreign Minister Abbas Araghchi wrote on X after the talks in Switzerland.

“Oil and petrochem exports are waived, blockade lifted, some frozen assets released, and major reconstruction & development plan launched for Iran. 1st real test: Lebanon deconfliction cell,” he wrote.

Al Jazeera’s Resul Serdar Atas, reporting from Tehran, said Iran achieved most of what it wanted in the talks in Switzerland because it had conditions for starting the technical talks.

“They were saying that the memorandum of understanding – particularly Articles 1, 10 and 11 – had to be initiated and implemented for the technical talks to move forward,” he said, referring to the sections on ending fighting on all fronts, including Lebanon; waiving US sanctions on Iranian energy exports; and releasing frozen Iranian assets.

“So now that they have decided that technical talks in Switzerland are going to continue throughout the whole week, we see that there is progress,” he added.

Trump’s threats

The roadmap was agreed after a shaky start to the negotiations. Iran’s delegation walked out in response to US President Donald Trump’s threats on Sunday to attack Iran over its support for Hezbollah.

“Iran must immediately stop their highly paid PROXIES in Lebanon from causing trouble,” Trump wrote on social media, apparently referring to Hezbollah. “If they don’t, we’ll hit Iran very hard again, just like we did last week, only harder!!!”

Iran hit back with a warning of its own.

“They would do better to be careful with their statements; our armed forces are ready to respond to them in a different manner. No matter what they say, we are the ones who act,” Iran’s chief negotiator, Ghalibaf, said.

Israeli Prime Minister Benjamin Netanyahu, meanwhile, said Israeli troops would remain in southern Lebanon “as long as necessary” and promised that he would “not allow Iran to acquire nuclear weapons”.

By Sunday evening, there had been no reports of Israeli attacks or continued fighting as some residents of southern Lebanon cautiously returned to their homes.

The fighting between Israel and Hezbollah has repeatedly threatened to derail peace efforts.

On Friday, planned US-Iranian talks were postponed after Israel launched deadly attacks in Lebanon following the deaths of four of its soldiers in combat.

Israel’s military chief visited troops on Sunday in southern Lebanon, where he said Hezbollah was in a “very difficult position”.

“Hezbollah has suffered a severe and significant blow, and we are committed to remaining prepared to continue operating and prevent its rebuilding,” Lieutenant General Eyal Zamir said.

The overall death toll from the fighting in Lebanon has surpassed 4,100 since it escalated on March 2, the Ministry of Public Health said.

‘Historic meeting’

Vance had earlier hailed “a historic meeting” in Switzerland.

Even as Trump was threatening Iran, Vance told reporters the US president had “asked us to turn over a new leaf to transform our relationship with the people of Iran”.

Flanked by US negotiators Jared Kushner and Steve Witkoff, Vance added: “The question before us now is how much more can we accomplish together?

“Can we turn over a new leaf? Can we change relations in the Middle East permanently?

“Or do we go back to doing things the old way, which is not our preference, but it’s certainly very much something that can happen.”

Lebanon aside, there has been no indication that Iran’s support for armed groups across the region, which has long drawn the ire of the US and Israel, would be addressed in the negotiations.

Speaking on Sunday, Iranian President Masoud Pezeshkian stressed that Tehran would not relinquish its right to enrich uranium although he repeated Iran’s denial that it seeks nuclear weapons.

“We can also state in writing that we have no intention of building a bomb,” he said.

Historic negotiations between Iran and the United States are officially underway, marking the start of what mediators describe as a crucial 60-day process.

May 24 (Asia Today) — South Korea is preparing to publicly unveil a development roadmap for a nuclear-powered attack submarine program after the successful Pacific deployment of the domestically built Dosan Ahn Chang-ho submarine, according to military and defense officials.

The move signals Seoul’s effort to strengthen what officials describe as the strongest conventional strategic deterrence available to a non-nuclear weapons state in response to North Korea’s advancing nuclear and missile capabilities and growing maritime competition in the region.

Senior military officials said the Ministry of National Defense and the Defense Acquisition Program Administration have completed technical reviews for a South Korean nuclear-powered submarine program and are now coordinating with related ministries, including the Foreign Ministry, on a diplomatic and regulatory strategy.

The report follows the recent Pacific deployment of the 3,000-ton Dosan Ahn Chang-ho submarine, which sailed about 14,000 kilometers, or 8,700 miles, from Jinhae through Guam and Hawaii using only domestically developed lead-acid batteries, diesel engines and an air-independent propulsion system.

South Korean officials said the deployment significantly reduced the need for snorkeling operations, in which submarines surface or raise air intake masts to recharge batteries, and demonstrated the vessel’s long-duration underwater operational capability and hull durability.

Officials also said the submarine successfully demonstrated stable operation of its submarine-launched ballistic missile vertical launch system in rough Pacific conditions. The Dosan Ahn Chang-ho class is the world’s first diesel-electric submarine class equipped with vertical launch tubes for submarine-launched ballistic missiles.

Defense experts said the mission simultaneously highlighted the operational limitations of conventional diesel submarines and the strategic advantages of nuclear propulsion.

While diesel-electric submarines must operate at relatively slow underwater speeds to maintain endurance, nuclear-powered submarines can remain submerged for much longer periods and travel underwater at speeds exceeding 40 kilometers per hour, allowing broader operational flexibility, officials said.

The foreign affairs and security publication The Diplomat reported Thursday that South Korea’s pursuit of a nuclear-powered submarine would become “a major test case of non-nuclear deterrence” for a country that does not possess nuclear weapons.

Chung Sung-chang, head of the Korea Nuclear Strategy Forum and a senior researcher at the Sejong Institute, said the submarine under discussion would be a non-nuclear attack submarine that would not carry nuclear weapons.

Chung said South Korea plans to retain the hull design and submarine-launched ballistic missile strike capability proven through the Dosan Ahn Chang-ho program while replacing the diesel propulsion system with a small nuclear reactor.

He said South Korea should first publicly present its nuclear submarine development roadmap before negotiating a bilateral nuclear submarine cooperation agreement with the United States and securing approval from the U.S. Congress.

Chung also said Seoul would need a separate agreement with Washington to secure low-enriched uranium fuel for naval reactors derived from downgraded highly enriched uranium.

Officials are reportedly studying the AUKUS security partnership among the United States, Britain and Australia, under which Australia received access to nuclear-powered submarine technology while remaining within the international nonproliferation framework.

South Korean officials said the success of the Dosan Ahn Chang-ho deployment demonstrated that the country’s technical preparations for a future nuclear-powered submarine program had reached a mature stage, shifting the focus toward diplomatic negotiations and international coordination.

— Reported by Asia Today; translated by UPI

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Original Korean report: https://www.asiatoday.co.kr/kn/view.php?key=20260524010006872