By Jana Choukeir and Humeyra Pamuk

DUBAI/WASHINGTON, May 20 (Reuters) - Iran threatened on Wednesday to spread war beyond the Middle East if the United States attacks again, after President Donald Trump said he had come within an hour of restarting the military campaign.

Six weeks since Trump paused Operation Epic Fury for a ceasefire, talks to end the war have largely stalled.

Iran submitted a new offer ‌to the United States this week, but its public accounts of it repeat terms previously rejected by Trump, including demands for control of the Strait of Hormuz, compensation for war damage, lifting of sanctions, ‌release of frozen assets and the withdrawal of U.S. troops from the area.

Trump said on Monday, and again on Tuesday, that he had come close to ordering a new bombing campaign but had put it off at the last minute to give more time for diplomacy.

"I was an ​hour away from making the decision to go today," Trump told reporters at the White House on Tuesday.

Iran has repeatedly threatened to retaliate for any new attacks by striking countries in the Middle East that house U.S. bases. On Wednesday it suggested it would also hit targets further afield.

"If aggression against Iran is repeated, the promised regional war will extend beyond the region this time," the Revolutionary Guards said in a statement carried on state media.

In the latest diplomacy, Iran's Tasnim news agency reported that Pakistan's interior minister had arrived in Tehran. Pakistan hosted the only round of peace talks last month and has been conveying messages between the sides.

CHINESE TANKERS CROSS STRAIT

Iran has largely shut the Strait of Hormuz to all ships ‌apart from its own since the U.S.-Israeli campaign began in February, causing the biggest ⁠disruption to global energy supplies in history. The United States responded last month with its own blockade of Iran's ports.

Iran says its aim is to reopen the strait to friendly countries that abide by its terms to use it. That could potentially include fees for access, which Washington says would be unacceptable.

Two giant Chinese tankers laden with a total of ⁠around 4 million barrels of oil exited the strait on Wednesday. Iran had announced last week, while Trump was in Beijing for a summit, that it had reached agreement to ease rules for Chinese ships.

South Korea's foreign minister said on Wednesday a Korean tanker was crossing the strait in cooperation with Iran.

Shipping monitor Lloyd's List said at least 54 ships had transited the strait last week, around double the number from the week before. But that is still only a tiny fraction of the 140 or ​so ​each day that typically crossed before the war.

Bloomberg reported that India was preparing to send empty tankers through the strait into the ​Gulf to load up on oil for the first time since the war began. Three ‌Indian government sources told Reuters this was more of a hope for the future, with efforts still focused mainly on securing transit in the opposite direction: a way out for ships trapped in the Gulf.

PRESSURE TO END WAR

Trump is under pressure to end the war, with soaring energy prices hurting his Republican Party ahead of congressional elections in November. Since the ceasefire, his public comments have veered from threats to restart bombing to declarations that a peace deal was at hand.

Despite saying he had come close to restarting the war on Tuesday he also said negotiations were going well and it would be over "very quickly". Vice President JD Vance, who led the U.S. delegation at last month's sole round of peace talks, also talked up progress, saying "We're in a pretty good spot here."

The fluctuating U.S. stances have sent oil prices bouncing from hour to hour and day to day, though on a clear upward trend week by ‌week. Benchmark one-month Brent crude futures eased about 2.75% on Wednesday morning to near $108 a barrel.

"Investors are keen to gauge whether Washington ​and Tehran can actually find common ground and reach a peace agreement, with the U.S. stance shifting daily," said Toshitaka Tazawa, an analyst ​at Fujitomi Securities.

CEASEFIRE MOSTLY HOLDING

The U.S.-Israeli bombing killed thousands of people in Iran before it was suspended ​in a ceasefire in early April. Israel has also killed thousands more and driven hundreds of thousands from their homes in Lebanon, which it invaded in pursuit of the Iran-backed Hezbollah ‌militia. Iranian strikes on Israel and neighbouring Gulf states have killed dozens of people.

The ​Iran ceasefire has mostly held, though there was a spike ​in attacks on shipping and on Gulf states in early May when Trump announced a naval mission to reopen the strait, only to call it off after just 48 hours.

This week saw a new volley of drones launched at Saudi Arabia and the UAE, which said they came from Iraq where militia allied to Iran operate. Jordan reported shooting down a drone on Wednesday.

Trump and Israeli Prime Minister Benjamin Netanyahu said ​when they launched the war that their aims were to curb Iran's support for ‌regional militias, dismantle its nuclear programme, destroy its missile capabilities and make it easier for Iranians to topple their rulers.

But Iran has so far retained its stockpile of near-weapons-grade enriched uranium, and ​its ability to threaten neighbours with missiles, drones and proxy militias. Its clerical rulers, who put down a mass uprising at the start of the year, have faced no sign of organised opposition ​since the war began.

(Reporting by Reuters bureauxWriting by Lincoln Feast and Peter GraffEditing by Raju Gopalakrishnan and Philippa Fletcher)