The fight between two well-armed Mideast powers has their neighbors worried about the conflict spreading, a concern only deepened by U.S. involvement.

After nearly two years of stark divisions over the war in Gaza and support for Israel, Democrats are now finding themselves at odds over U.S. policy toward Iran as progressives demand unified opposition to President Donald Trump's consideration of a strike against Tehran's nuclear program while party leaders tread more cautiously.

Iran’s leaders are discovering they’re on their own against the US and Israel, without the network of proxies and allies that allowed them to project power in the Middle East and beyond.