US Central Command reported that US forces began striking Islamic Revolutionary Guard Corps (IRGC) targets in Iran at 12:00 p.m. ET on September 1, 2026. ^[1] The US Embassy in Jerusalem issued a security warning on 2026-09-01 for American citizens in the Middle East, citing regional tensions and the potential for unforeseen escalation. ^[2] US Central Command announced on 2026-09-01 that it had initiated its second wave of strikes against Iran in the past week. ^[3] President Trump stated on Truth Social that the strikes were also a response to eight Iranian missiles launched against a US base in Jordan, all of which were intercepted. ^[4] The Iranian Revolutionary Guard Corps vowed a 'hard punishment' for the aggressors, with Brigadier General Hosein Mohebi stating that the US would regret the new attacks. ^[5] These US strikes are a retaliation for recent Iranian attempts to place naval mines in the Strait of Hormuz and attacks against American service members deployed to the region. ^[6] The US Embassy in Jerusalem stated on 2026-09-01 that Iran and groups supportive of Iran may target other US interests overseas or at locations associated with the United States and Americans throughout the world. ^[7] The US Embassy in Jerusalem warned American citizens on 2026-09-01 to stay vigilant and watch for potential airspace closures that could disrupt travel or cause flight cancellations. ^[8]