Operation Lilliput was the name given to a convoy operation that transported troops, weapons, and supplies from Milne Bay

Milne Bay

Milne Bay is a large bay in Milne Bay Province, southeastern Papua New Guinea. The bay is named after Sir Alexander Milne.The area was a site of the Battle of Milne Bay in 1942....

 to Oro Bay

Oro Bay

Oro Bay is a bay in Oro Province, Papua New Guinea, located southeast of Buna. The bay is located within the larger Dyke Ackland Bay. A port is operated by PNG Ports Corporation Limited with limited wharf facilities.-History:...

, New Guinea

New Guinea

New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

 between December 1942 and June 1943 during World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

.

Within six months, the convoys 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 sunk and two badly damaged while several of the corvettes also sustained damage and casualties.