After the German occupation of Norway, many Norwegian merchant seamen and fishermen made their way to Britain. SOE recruited several to maintain communications to Norway, using fishing boats from a base in the Shetland Islands. The service became so reliable that it became known as the Shetland Bus. One of its boats and crews launched a daring but unsuccessful attack ("Operation Title") against the German battleship Tirpitz. A similar organisation ran missions to occupied Denmark (and neutral Sweden) from the east coast of Britain. The "Shetland Bus" was unable to operate only during the very long hours of daylight in the Arctic summer, because of the risk that the slow fishing boats would be attacked by patrolling German aircraft. Late in the war, the unit acquired three fast Submarine chasers for such missions. About the same time, SOE also acquired MTBs and Motor Gun Boats for the Helford flotilla.
After the German occupation of Norway, many Norwegian merchant seamen and fishermen made their way to Britain. SOE recruited several to maintain communications to Norway, using fishing boats from a base in the Shetland Islands. The service became so reliable that it became known as the Shetland Bus. One of its boats and crews launched a daring but unsuccessful attack ("Operation Title") against the German battleship Tirpitz. A similar organisation ran missions to occupied Denmark (and neutral Sweden) from the east coast of Britain The "Shetland Bus" was unable to operate only during the very long hours of daylight in the Arctic summer because of the risk that the slow fishing boats would be attacked by patrolling German aircraft. Late in the war, the unit acquired three fast Submarine chasers for such missions About the same time, SOE also acquired MTBs and Motor Gun Boats for the Helford flotilla.