U.S. diplomatic missions across the Middle East, including the embassies in Kuwait, Manama, Amman and Beirut and the mission in the United Arab Emirates, issued security alerts dated Oct. 18 urging Americans in the region to “exercise heightened vigilance due to the complex security environment” and to prepare for possible flight cancellations, airspace closures and travel disruptions.
Similar alerts were reportedly issued for Israel, Iraq and Qatar. The warnings come amid growing speculation about a possible U.S. strike on Iran.
“Potential to escalate rapidly”
The alert from the embassy in Kuwait said Iranian-supported Houthis have engaged in hostilities against Saudi Arabia, including attacks on civilian airports and other critical infrastructure, resulting in civilian casualties and severe travel disruptions. It warned that the hostilities “have the potential to escalate rapidly beyond that immediate area.”
The embassy in Manama warned that Iran and groups supportive of Iran may target other U.S. interests overseas or locations associated with the United States and Americans around the world.

Call to leave Iran
An alert for Iran said U.S. citizens should leave the country now. Iran remains at Level 4, “Do Not Travel,” the same level as Lebanon, while Kuwait is at Level 3, “Reconsider Travel.”
The U.S. mission in Saudi Arabia had already restricted travel to airports by U.S. government employees after missile and drone attacks on Saudi airports, requiring approval from the chief of mission. Flights at King Khalid International Airport in Riyadh were suspended, while Jeddah and Dammam continued operating with delays and cancellations.
The alerts advised Americans to monitor airport and flight status, make contingency plans in advance, enroll in the State Department’s STEP program, avoid demonstrations and large gatherings, and stay away from glass and windows during aerial attacks.
New strike options
CNN, citing unnamed U.S. officials, reported that the military has developed additional strike options against Iran, including the GBU-43/B, known as the “mother of all bombs.” President Donald Trump has warned that the United States and its allies would “finish the job” if Iran does not change course, while Iranian Foreign Minister Abbas Araghchi said Tehran was ready for further escalation, adding: “We have unfinished jobs too.”