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... According to the Journal, Iran has adapted to U.S. defenses by firing missiles that travel at extremely high speeds and can maneuver as they descend toward their targets, according to U.S. officials cited by the outlet.

"Iran's ability to hit sensitive targets also has raised concerns that the regime is getting targeting help from China or Russia," the officials told the Journal.

US reinforcements headed to the region

The Journal reported that the U.S. is deploying additional warplanes to the region in response, including F-16 fighters from Spangdahlem Air Base in Germany capable of striking Iranian radars used to fire surface-to-air missiles, as well as stealth F-35s being sent from RAF Lakenheath in England, alongside additional aerial refueling tankers. ...