[2] MU's mission was to "infiltrate agents and supply resistance groups by sea, conduct maritime sabotage, and to develop specialized maritime surface and subsurface equipment and devices.

"[2] MU developed specialized boats, equipment, and explosives, fashioned underwater breathing gear, waterproof watches and compasses, an inflatable motorized surfboard, and "a two-man kayak that proved so promising that 275 were ordered by the British.

[4] The Frogmen of the MU are considered pioneers of amphibious, maritime, and underwater warfare.

MU planned and carried out the amphibious phases of OSS activities and assisted in the development of the special equipment required.

[5] Those techniques were clandestine ferrying, maritime sabotage, and beach and hydrographic reconnaissance.