Britain is ready to defend itself against Iranian missile attacks, the Government has said, after Tehran threatened to strike a Royal Air Force base used by US forces. On Thursday night, flight-tracking websites traced the journey of a B1 bomber from RAF Fairford in Gloucestershire towards Iran. 'No defences'Shortly after the Iran war began, military chiefs said Britain was defenceless against potential Iranian missile attacks after Tehran tried to strike the joint British-US Diego Garcia military base on the Chagos Islands. Advertisement AdvertisementAdvertisement AdvertisementHamidreza Azizi, an influential Iran analyst, said that the strikes had raised fears of a "significant escalation". The US had deployed special operations forces, medics and weapons closer to Iran, sources told The Wall Street Journal.