After heavy editing by the MoD and Foreign Office, the story of this secret war was revealed in "SAS Operation Oman", written by the SAS commander, Colonel Tony Jeapes. Still used as a textbook at the Army Staff College, Camberley, it reveals how small teams of elite soldiers took on a dedicated guerrilla army and destroyed it. While the US Army was losing its very public war in Vietnam, the SAS fought in complete secrecy, saving the Omani regime and preventing Soviet-backed guerrillas from seizing control of the Persian Gulf. MoD restrictions are now lifted, enabling Tony Jeapes to reveal key details he was forced to omit in 1980.