Israel recently conducted airstrikes damaging Iranian installations. The US may join the conflict. Once, the US and Iran had strong ties. A US-backed coup ousted Iran's PM in 1953. The Shah era saw nuclear cooperation.

For much of the 20th century, the US and Iran maintained friendly relations. During the Cold War, Washington depended on the Shah of Iran to counter Soviet influence in the oil-rich Middle East.

Sen. Tim Kaine (D-Va.) introduced a resolution on Monday seeking to prevent the U.S. from getting involved in a military conflict with Iran without congressional approval. The resolution reaffirms

The resolution requires congressional debate and a vote before the United States takes any offensive measures against Iran.

Syria was once among the closest allies of the Islamic republic, but the new government resents Tehran’s support for the Assad regime and has pledged not to allow attacks on Israel from its territory.

Sen. Lindsey Graham urged President Donald Trump to go "all-in" for Israel in its conflict with Iran, while other lawmakers prefer a diplomatic end to the conflict to prevent further escalation.

European and regional powers largely approve of efforts to prevent an Iranian bomb. So too do Israelis. But without US support to finish the job, the long-term prospects for that support look shaky.

AOC and other Squad Democrats join Republican rivals to back resolution against US involvement in Iran - Reps. Alexandria Ocasio-Cortez, Rashida Tlaib and Ro Khanna all joined the GOP legislation