The prospect of a U.S. strike against Iran has exposed divisions in the coalition of supporters that brought President Donald Trump to power, with some of his base urging him not to get the country involved in a new Middle East war, Reuters reported.

Some of Trump's most prominent Republican allies, including top lieutenant Steve Bannon, have found themselves in the unusual position of being at odds with a president who largely shares their isolationist tendencies.

Bannon, one of many influential voices from Trump's "America First" coalition, on Wednesday urged caution about the U.S. military joining Israel in trying to destroy Iran's nuclear program in the absence of a diplomatic deal, according to Reuters.

"We can't do this again," Bannon told reporters at an event sponsored by the Christian Science Monitor in Washington. "We'll tear the country apart. We can't have another Iraq."