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Operation Lilliput
Operation Lilliput (World War II) was the name given to a convoy operation directed by G.H.Q. Operations Instructions Number 21 of 20 October 1942 for transportation of troops, weapons, and supplies in a regular transport service between Milne Bay and Oro Bay, New Guinea between 18 December 1942 and June 1943 in order "to cover reinforcement, supply, and development of the Buna-Gona area upon its anticipated capture" by the Australian 7th Division and the United States Army's 32d Division. Within six months, the convoys, escorted by Royal Australian Navy corvettes and largely composed of Dutch KPM merchant ships, had delivered 60,000 tons of supplies and 3,802 troops from Milne Bay to Oro Bay. Corvettes provided the majority of the escort force. Losses during Imperial Japanese air attacks amounted to two merchant ships, and , sunk and two badly damaged while several of the corvettes also sustained damage and casualties.
==Oro Bay==
The western terminus of the convoys was Oro Bay some from Milne Bay and noted for its treacherous approaches between Milne Bay and Cape Nelson. The final approach was through a channel from wide and deep. The port area, with a capacity for six to eight ships in an anchorage of about , some from Buna itself, had been used earlier by vessels of the Small Ships Section supporting the campaign.
On 14 December 1942, an advance party of the Lilliput Task Force arrived with landing barges in advance of the first U.S. Army controlled KPM vessels , and between 20 and 24 December. Destroyers had been requested as convoy escorts by General Blamey, Commander, Allied Land Forces, but rejected by Vice Admiral Arthur S. Carpender commanding Allied Naval Forces noting the entire area between Cape Nelson and Buna was so filled with reefs that destroyers would be limited in maneuver and not effective against Japanese forces with clear sea room from bases in Rabaul. Further, requirements preliminary to the Guadalcanal operation required fleet units be on standby south of New Guinea. Thus the convoys would only have small, shallow draft warships for escort. A part of the Buna-Gona general plan was development of a deep water port in Oro Bay with a road to be constructed to an airfield to be developed for logistics and as a bomber base at Dobodura.
Initial landing operations were carried out under cover of night and construction of the of road between the port and Dobodura Airfield was begun by Australian units later augmented by U.S. Army units and equipment with completion within months. In the meantime, jeeps were used over jungle trails to deliver supplies. Over 50 air raids were experienced in the first six months and construction of warves were started in mid 1943 as Operation Lilliput itself was coming to a close, and eight docks, some capable of supporting larger ships, were available by the first of August. After the Lilliput convoys ended, the port was developed into a major facility with machine shops, additional large ship dockage, a slipway of logs capable of handling small vessels and by August 1944 a wooden pier capable of supporting four Liberty ships at once.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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