The U.S. State Department has called on its citizens to exercise extra caution following a planned terrorist attack near Fairford Air Force Base in the United Kingdom, where many American forces are stationed. The statement read that 'The U.S. Embassy is aware of the arrest of suspects in preparations for a terrorist attack on the Royal Air Force base. We remind American citizens that British authorities have designated the threat of terrorism as severe.' It further stated that 'Infrastructure and organizations associated with the United States are at increased risk.'