Summarize and humanize this content to 2000 words in 6 paragraphs in EnglishWhite House press secretary Karoline Leavitt had a harsh warning for Iran on Friday, telling them to agree to President Donald Trump’s demands or ‘there will be all hell to pay.’Leavitt’s strong words came ahead of Saturday’s meeting in Oman with Iranian officials over its nuclear program after Trump threatened Tehran with military action if it does not agree to a deal.’He’s made it very clear to the Iranians and his national security team will as well, that all options are on the table, and Iran has a choice to make. You can agree to President Trump’s demand, or there will be all hell to pay, and that’s how the president feels. He feels very strongly about it,’ Leavitt said.She noted Trump’s ‘ultimate objective is to ensure that Iran can never obtain a nuclear weapon.’ White House press secretary Karoline Leavitt had harsh words for IranTrump envoy Steve Wiskoff will lead the American team in Saturday’s talks. He’ll travel there after spending Friday in Russia meeting with President Vladimir Putin.Moscow has repeatedly offered its help in trying to clinch a diplomatic settlement between the U.S. and Iran.Iranian state media said Iran would be represented by Foreign Minister Abbas Araqchi, with Omani Foreign Minister Badr al-Busaidi as intermediary.In the talks, Iran seeks a ‘real and fair’ agreement with Washington on its nuclear program, a senior aide to supreme leader Ayatollah Ali Khamenei said Friday.Trump, in February, restored his ‘maximum pressure’ campaign on Iran, which includes efforts to drive its oil exports down to zero, in order to stop Tehran from obtaining a nuclear weapon. He said earlier this week that if the talks are unsuccessful, ‘Iran is going to be in great danger.’Still there is confusion headed into the talks. Araghchi maintains the negotiations will begin as indirect talks, likely with Omani Foreign Minister Badr bin Hamad al-Busaidi passing messages between Tehran and Witkoff. Trump has maintained the talks will be direct. While not a major roadblock, it signals the challenge the negotiations face – particularly after years of indirect talks during the Biden administration went nowhere.And while the U.S. side can offer sanctions relief for Iran’s beleaguered economy, it remains unclear just how much Iran will be willing to concede. President Donald Trump’s envoy Steve Witkoff will lead the Iran talks for the U.S. Iranian Foreign Minister Abbas Araqchi will represent his countrySince Trump pulled the U.S. out of the 2015 deal that curbed Iran’s uranium enrichment activity, deeming the accord deeply flawed, Tehran has accumulated a stockpile of uranium refined to levels close to what would be suitable for nuclear bomb fuel.Under the 2015 nuclear deal, Iran could only maintain a small stockpile of uranium enriched to 3.67%. Today, Tehran’s stockpile could allow it to build multiple nuclear weapons if it so chooses and it has some material enriched up to 60%, a short, technical step away from weapons-grade levels. Trump, on Monday, made a surprise announcement that Washington and Tehran would begin talks in Oman, a Gulf state that has mediated between the West and the Islamic Republic before. Iran had rejected direct negotiations with Washington before Trump announced on March 30: ‘If they don’t make a deal, there will be bombing, and it will be bombing the likes of which they have never seen before.’ In this photo released by the Iranian Presidency Office, President Masoud Pezeshkian, second right, listens to head of Atomic Energy Organization of Iran Mohammad Eslami as he visits an exhibition of Iran’s nuclear achievements, in Tehran President Donald Trump, in February, restored his ‘maximum pressure’ campaign on IranIran has been in the spotlight since Trump returned to office, and its regional allies have suffered major setbacks.Hamas in Gaza and Hezbollah in Lebanon have suffered heavy losses in conflicts with Israel sparked by the Palestinian group’s October 2023 attack.Since the Gaza war began, Iran and Israel have attacked each other directly for the first time.Meanwhile, U.S. air attacks on Yemen’s Houthis, who are aligned with Iran and have hit international shipping lanes in the Red Sea in support of Hamas, have stirred speculation that Washington might be preparing to attack Iran.And Israel has resumed its devastating military campaign against Hamas, which has also received support from Iran, after several weeks of truce, and its ceasefire with the Iranian-backed Lebanese Hezbollah militia remains brittle.