By Parisa Hafezi, Alexander Cornwell and Bo Erickson
DUBAI/TEL AVIV/WASHINGTON, March 12 (Reuters) - The United States and Iran have signaled no quick end to their war, with U.S. President Donald Trump saying it was necessary to finish the job and Iran warning that the world should be ready for oil at $200 a barrel after striking tankers in Iraqi waters and other ships near the vital Strait of Hormuz.
The war unleashed with joint U.S. and Israeli air strikes nearly two weeks ago has so far killed around
2,000 people, mostly Iranians and Lebanese, as it has spread into Lebanon and thrown global energy markets and transport into chaos.
The United Nations Children's Fund (UNICEF) said more than 1,100 children had been killed or injured.
At a campaign-style rally in Kentucky ahead of November midterm elections in which his Republican party is trailing badly, Trump said the United States had "won" the war but didn't want to have to go back every two years.
"We don't want to leave early do we?" he said on Wednesday. "We got to finish the job."
Oil prices, which shot up earlier in the week to nearly $120 a barrel before settling back to around $90, rose nearly 5% on Wednesday and extended gains in Asian trade on Thursday amid renewed fears about supply disruption. Wall Street's main share indexes fell.
Despite what the Pentagon has described as the most intense airstrikes since the start of the war, Iran on Wednesday hit targets in Israel and across the Middle East, demonstrating it can still fight back.
Iranian explosive-laden boats appear to have attacked two fuel tankers in Iraqi waters setting them ablaze and killing one crew member after projectiles struck three vessels in Gulf waters, said port, maritime security and risk firms.
"This appears to mark a direct and forceful Iranian response to the IEA’s overnight announcement of a massive strategic reserve release aimed at cooling runaway prices," said Tony Sycamore, analyst at IG.
The International Energy Agency, made up of major oil consuming nations, recommended releasing 400 million barrels from global strategic reserves to dampen one of the worst oil shocks since the 1970s, the biggest such intervention in history.
Trump said the IEA decision "will substantially reduce oil prices as we end this threat to America and the world."
U.S. Energy Secretary Chris Wright said Trump had authorized the release of 172 million barrels from the U.S. Strategic Petroleum Reserve from next week.
The war has seen ports and cities in the Gulf states as well as targets in Israel hit by drone and missile barrages from Iran.
CRUCIAL OIL ROUTE BLOCKED
So far there has been no sign that ships can safely sail through the Strait of Hormuz, the now-blockaded channel along the Iranian coast that serves as a conduit for around a fifth of the world's oil.
On Wednesday, an Iranian military spokesperson said the Strait was "undoubtedly" under Iran's control and the G7 group of nations - the United States, Canada, Japan, Italy, Britain, Germany and France - agreed to examine the option of providing escort for ships so they can navigate freely in the Gulf.
Trump said U.S. forces had knocked out 58 Iranian naval ships and that Iran was "pretty much at the end of the line."
He said the U.S. would now "look very strongly" at the Strait of Hormuz, adding: "The straits are in great shape. We've knocked out all of their boats. They have some missiles, but not very many."
Trump said earlier ships "should" transit through the strait but sources said Iran had deployed about a dozen mines in the channel, further complicating the blockade.
ABC News said the Federal Bureau of Investigation had warned of Iranian drones potentially striking the U.S. West Coast, although Trump said he was not worried that Iran might launch strikes on U.S. soil.
The U.S. State Department also warned that Iran and aligned militias may be planning to target U.S.-owned oil and energy infrastructure in Iraq and warned that militias had in the past targeted hotels frequented by Americans.
U.S. and Israeli officials have said their aim is to end Iran's ability to project force beyond its borders and destroy its nuclear programme. An Israeli military official said the military still had an extensive list of targets to hit in Iran, including ballistic missile and nuclear-related sites.
The U.S. military told Iranians to stay clear of ports with Iranian navy facilities, drawing a warning from Iran's military that if the ports were threatened, economic and trade centres in the region would be "legitimate targets".
With pump prices surging, oil prices have become an increasingly urgent element in the calculations behind the war.
Iran has made clear it intends to impose a prolonged economic shock, with the spokesperson for Iran's military command saying in remarks directed at the U.S. on Wednesday: "Get ready for oil to be $200 a barrel, because the oil price depends on regional security, which you have destabilised."
The rate at which IEA countries can release strategic reserves will vary and the amount released would account for just a fraction of the supply through the Hormuz Strait.
After offices of a bank in Tehran were hit overnight, Iran said it would respond with attacks on banks that do business with the U.S. or Israel and people across the Middle East should stay 1,000 metres from banks.
(Reporting by Parisa Hafezi in Dubai, Alexander Cornwell in Tel Aviv and Bo Erickson in HEBRON, Kentucky and Washington, and Reuters bureaux; Writing by David Brunnstrom; Editing by Lincoln Feast)
