Airstrikes battered Irans capital and Iranian missiles and drones targeted Israels Tel Aviv and sites across the Mideast on Tuesday, even as President Donald Trump said the United States was in talks with the Islamic Republic to end the war. With thousands more U.S. Marines on their way to the Gulf, both sides firing intense barrages and Iran denying any negotiations are taking place, the wars tempo remained high a day after Trump delayed his self-imposed deadline for Iran to reopen the Strait of Hormuz. Tehran's chokehold on that crucial waterway has snarled international shipping, sent fuel prices skyrocketing, and threatened the world economy.Any talks between the U.S. and Iran which appeared at the most tentative Tuesday would face monumental challenges. Many of Washingtons shifting list of objectives particularly over Irans ballistic missile and nuclear programs remain difficult to achieve. Meanwhile, its not clear who in Irans government would have the authority to negotiate or be willing to, particularly as Israel has vowed to continue taking out leaders after killing several.REALTED STORY | Trump threatens attacks on Iranian power plants if Tehran fails to open the Strait of HormuzIran also remains highly suspicious of the United States, which twice under the Trump administration has attacked during high-level diplomatic talks, including with the Feb. 28 strikes that started the current war. The spokesman of country's top military command said Tuesday that its armed forces would fight until complete victory.Irans military has conducted strikes on the orders of local commanders, rather than from the political leadership, Foreign Minister Abbas Araghchi said early in the war. It remains unclear whether Irans new Supreme Leader Mojtaba Khamenei, who reportedly was wounded and has yet to be seen publicly, is issuing orders to Irans regular military or its paramilitary Revolutionary Guard, which answered only to his late father.Mixed signals on negotiations amid deep mistrustWhile Iranian parliament Speaker Mohammad Bagher Qalibaf called the idea of negotiations with the U.S. fakenews, Araghchis office acknowledged the foreign minister has been talking about the war this week with his counterparts in Azerbaijan, Egypt, Oman, Pakistan, Russia, South Korea, Turkey and Turkmenistan.Talk of negotiations briefly drove down oil prices and boosted stocks. But that respite was short-lived, with the price of Brent crude, the international standard, nudging back over $100 a barrel Tuesday, up nearly 40% since the war started.Irans leaders are wary of Washingtons motives, in part because Tehran was in negotiations with the U.S. before the surprise attack that started the current war. Iran was also in talks last year when the U.S. and Israel attacked its nuclear facilities.On Tuesday, Iranian state television quoted Maj. Gen. Ali Abdollahi Aliabadi of the Khatam-al Anbiya Central Headquarters as saying: Irans powerful armed forces are proud, victorious and steadfast in defending Irans integrity, and this path will continue until complete victory.The general did not say what complete victory would look like, but it appeared likely Irans military was trying to warn against offering concessions in any possible negotiations with the United States. Iran named a former Iranian Revolutionary Guard commander as the new secretary of the countrys Supreme National Security Council on Tuesday, replacing Ali Larijani, who was killed in an airstrike. Iranian state television identified the new secretary as Mohammad Bagher Zolghadr, who reached the rank of brigadier general in the Guard.Marines are on the way to the Persian GulfTrumps announcement also comes as a contingent of thousands of Marines is on the way to the region, raising speculation that the U.S. may try to seize Kharg Island, which is vital to the countrys oil network.The U.S. bombed the island in the Persian Gulf more than a week ago, hitting its defenses but saying it had left oil infrastructure intact.Iran has threatened to mine the Persian Gulf if the U.S. appears to be on the verge of landing troops. That would complicate an amphibious assault and also imperil all shipping in the area.Trump said he would hold off on a threat to bomb Irans power stations while talks unfold a delay that could be timed to coincide with the arrival of U.S. Marines in the region, expected Friday, wrote the New York-based think tank the Soufan Center in an analysis.As Trump has in the past, he could be moving military assets into place, in this case to prepare for an invasion and seizure of Kharg Island, while using negotiations as a cover until those assets are fully combat-ready.RELATED STORY | Iran pushes back on Trump's suggestions that an end to the war is closeHowever, the center also noted that Trump could be actively seeking an offramp. Whether Iran reciprocates is yet to be seen.Trump has said he has no plans to send ground forces into Iran but has not ruled it out. Israel has suggested its ground forces could take part in the war. ...read more read less