In 1942 Fiji was a
British colony, when Japan's Pacific aggression started in the late 1930s. The United Kingdom worked with New Zealand to build up the defense of the Island. New Zealand drew up plans for the defense of Fiji in April 1939. United Kingdom, New Zealand, and Fiji agreed to the plans which called for air bases,
seaplane base, coastal batteries, and other defense on the Fiji Islands. The number of Troops sent would not have been enough to defend Fiji had it been invaded. Most troops were sent to the key Suva Peninsula and nearby Nandali airfield. New Zealand built a system of underground bases with a hospital, supply depot, headquarters and more. A depot and 300-bed hospital were built at Tamavua. Fiji College of Advance Education was used as a hospital during the war. With the rapid expansion of Japan in 1942 and 1943, Fiji was under threat of Japanese invasion in 1942 and part of 1943. Japan had made plans to invade Fiji, called
Operation FS, but this was canceled after the major defeat at the
Battle of Midway. After the
Attack on Pearl Harbor on 7 December 1941, it was agreed that the
United States Armed Forces could use Fiji as a staging base and training base. United States Armed Forces took over much of the operation of the airfields and seaplane bases. Fiji was a key point on the long shipping route from the United States to South Pacific bases, including major bases in Australia. On 13 May 1942, the United States issued a document called "Joint Army and Navy Plan for the Relief of New Zealand in Fiji and Tonga". The plan requests the replacement of the 10,000 New Zealand troops with US Troops. The New Zealand troops freed up went on to fight in the
Solomon Islands. Part of the plan called for the US Navy to build an 80,500-barrel tank farm near Nandi, on Fiji's west coast. The US Navy's
Seabee 3rd Construction Battalion formed at
Camp Allen was sent to Fiji to start new construction and expansion of existing bases on Viti Levu, Fiji's main island. Work started at the tank farm at Nandi and the port at
Suva, Fiji's main port. The
hospital ship USS Solace was a regular visiter to Fiji. On 28 July 1942, the US Navy and
US Marine did a practice
amphibious landing at Fiji's
Koro Island. This was to prepare the troops for the upcoming landings at
Guadalcanal, the Troop's first major offensive of the War. From the rehearsal, lessons were learned that helped at Guadalcanal. On 31 July 1942, the Troops departed Fiji for the
invasion of Guadalcanal. During the
Pacific War, 8,000 Fijian troops fought with the
Allies in the
Solomon Islands campaign and
Bougainville campaign. At Suva large staging base was built. Fiji also became a
rest and recuperation base for troops fighting in the Pacific War. As the war moved closer to Japan most operations had moved closer to Japan at more advanced bases. By August 1944 most operations at Fiji had been moved out. ==Port of Suva==