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American commanders have put troops on high alert throughout the region as fears of a wider war grow.

June 17, 2025, 4:10 p.m. ET
Iran has prepared missiles and other military equipment for strikes on U.S. bases in the Middle East should the United States join Israel’s war against the country, according to American officials who have reviewed intelligence reports.
The United States has sent about three dozen refueling aircraft to Europe that could be used to assist fighter jets protecting American bases or that would be used to extend the range of bombers involved in any possible strike on Iranian nuclear facilities.
Fears of a wider war are growing among American officials as Israel presses the White House to intervene in its conflict with Iran. If the United States joins the Israeli campaign and strikes Fordo, a key Iranian nuclear facility, the Iranian-backed Houthi militia will almost certainly resume striking ships in the Red Sea, the officials said. They added that pro-Iranian militias in Iraq and Syria would probably try to attack U.S. bases there.
Other officials said that in the event of an attack, Iran could begin to mine the Strait of Hormuz, a tactic meant to pin American warships in the Persian Gulf.
Commanders put American troops on high alert at military bases throughout the region, including in the United Arab Emirates, Jordan and Saudi Arabia. The United States has more than 40,000 troops deployed in the Middle East.
Two Iranian officials have acknowledged that the country would attack U.S. bases in the Middle East, starting with those in Iraq, if the United States joined Israel’s war.