a fleet of hired Greek wooden fishing vesselscalled caiquescovertly supported OSS agents in Albania, Greece, and Yugoslavia. After Italy surrendered, the MU and Mariassalto, an elite Italian special operations naval unit, operated against the Germans. In the Far East, the MU operated in conjunction with an Operational Group to attack Japanese forces on the Arakan coast of Burma. They jointly conducted reconnaissance missions on the Japanese-held coast, sometimes penetrating several miles up enemy-controlled rivers. The MU developed or used several innovative devices that would later allow for the creation of a special operations combat-diver capability, first in Army Special Forces (Green Berets) and later in US Navy SEAL units. Perhaps the most important invention in the realm of special operations diving was the Lambertsen Amphibious Respiratory Unit (LARU) invented by Dr. Christian J. Lambertsen. The Lambertsen unit permitted a swimmer to remain underwater for several hours and to approach targets undetected because the LARU did not emit telltale air bubbles. The LARU was later refined, adapted, and the technology used by the U.S. Army, U.S. Navy, and NASA. The Army Special Forces Underwater Operations School at Key West, Florida, the home of Special Forces maritime operations, draws its roots from the Maritime Unit. Lambertsen began his involvement with OSS as a medical student offering the use of his technology to the secretive organization in 1942. In 1944 he was commissioned as an Army Officer and later joined the OSS as an Operational Swimmer. Lambertsen himself led the OSS Maritime Unit on covert underwater missions to attach explosives to Japanese ships. Dr. Christian Lambertsen is remembered today as the 'Father of Military Underwater Operations'. Along with all the members of the OSS Maritime Unit, he was made honorary Green Berets and recognized by organizations like the UDT Navy Seal Association for their heroic and critical work. In May 1944, Colonel "Wild Bill" Donovan, the head of the OSS, divided the Maritime Unit into four groups and approached General MacArthur and Admiral Nimitz about using OSS men in the Pacific Gen. MacArthur had no interest at all. Adm Nimitz looked at Donovan's list of units and also said no thank you except he could use the swimmers from the Maritime Unit to expand the UDTs. He was primarily interested in them for being swimmers, not their military training. The interest in the tactical applications of the OSS Operational Swimmers' training only developed