By Phil Stewart, Idrees Ali, Joanna Plucinska and Jonathan Landay WASHINGTON (Reuters) -The U.S. military has moved a large number of refueling aircraft to Europe to provide options to President Donald Trump as Middle East tensions erupt into conflict between Iran and Israel,

Iranian missiles damaged the US embassy in Tel Aviv, escalating tensions. Israel retaliated with strikes on Iran's energy sector, while both sides continued attacks.

The USS Nimitz and its carrier strike group are steaming west from the Pacific as part of an overall buildup of US military firepower

The dollar strengthened against the safe-haven yen and Swiss franc on Monday, but weakened against most major currencies, as investors monitored the fighting between Israel and Iran for signs it could escalate into a broader regional conflict and braced for a week packed with central bank meetings.

Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

Iran’s Foreign Minister Abbas Araghchi has made explosive allegations against the United States, claiming Washington aided Israel’s recent deadly strikes on Iranian territory, including its nuclear facilities.

The U.S. military has moved a large number of refueling aircraft to Europe to provide options to President Donald Trump as Middle East tensions erupt into conflict between Iran and Israel, two U.S. officials told Reuters on Monday,

The US State and Defense departments on Wednesday made efforts to arrange the departure of non-essential personnel from locations around the Middle East, according to US officials and sources familiar with the efforts.