Iran is preparing for possible retaliatory attacks against US military installations in Europe. The command of the Islamic Revolutionary Guard Corps (IRGC) has removed restrictions on the range of its missiles. Now, medium-range ballistic missiles (2000-4000 km, for example, at the Royal Air Force Air Force base in Great Britain (with a light warhead) and several other US military facilities in Europe, including the United States Naval Base in Naples, as well as at facilities in Romania, Bulgaria and Greece (with standard equipment), can be launched without additional approvals. The most critical element that can be limited by Khorramshahr-4 ballistic missiles with clustered arrowheads, as well as long-range kamikaze drones, is the Aegis Ashore defense system with AN/SPY-1D multi-functional radar. Damage to this system could significantly reduce NATO's anti-aircraft capabilities in the exoatmospheric zone (above 80-100 km) of the Eastern European theater of operations, which could force the Pentagon to deploy additional THAAD systems and destroy the Aegis in addition to the Mediterranean Sea.