Reading this ... although this starts as a war against Iran, it looks like the US expects conflict to expand beyond Iran.
"The U.S. Department of State has called on Americans to immediately leave more than a dozen countries in the Middle East.
Due to "serious safety risks," Americans are being urged to depart using commercial transportation from Bahrain, Egypt, Iran, Iraq, Israel, the West Bank and Gaza, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates and Yemen, according to Mora Namdar, the State Department's assistant secretary for consular affairs."