Guadalcanal (; indigenous name: ''Isatabu'') is the principal island in
Guadalcanal Province of
Solomon Islands
Solomon Islands, also known simply as the Solomons,John Prados, ''Islands of Destiny'', Dutton Caliber, 2012, p,20 and passim is an island country consisting of six major islands and over 1000 smaller islands in Melanesia, part of Oceania, t ...
, located in the southwestern
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
, northeast of
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
. It is the largest island in the Solomons by area and the second-largest by population (after
Malaita
Malaita is the primary island of Malaita Province in Solomon Islands. Malaita is the most populous island of the Solomon Islands, with a population of 161,832 as of 2021, or more than a third of the entire national population. It is also the se ...
). The island is mainly covered in dense
tropical rainforest
Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the Equator. They are a subset of the tropical forest biome that occurs roughly within the 28° latitudes (in the torrid zo ...
and has a mountainous
hinterland
Hinterland is a German word meaning the 'land behind' a city, a port, or similar. Its use in English was first documented by the geographer George Chisholm in his ''Handbook of Commercial Geography'' (1888). Originally the term was associated wi ...
.

Guadalcanal was first charted by Europeans during the Spanish expedition of
Álvaro de Mendaña in 1568. The name comes from the village of
Guadalcanal
Guadalcanal (; indigenous name: ''Isatabu'') is the principal island in Guadalcanal Province of Solomon Islands, located in the southwestern Pacific Ocean, northeast of Australia. It is the largest island in the Solomons by area and the second- ...
, in the province of
Seville
Seville ( ; , ) is the capital and largest city of the Spain, Spanish autonomous communities of Spain, autonomous community of Andalusia and the province of Seville. It is situated on the lower reaches of the Guadalquivir, River Guadalquivir, ...
, in
Andalusia
Andalusia ( , ; , ) is the southernmost autonomous communities of Spain, autonomous community in Peninsular Spain, located in the south of the Iberian Peninsula, in southwestern Europe. It is the most populous and the second-largest autonomou ...
, Spain, birthplace of Pedro de Ortega Valencia, a member of Mendaña's expedition.
During 1942 and 1943, it was the scene of the
Guadalcanal campaign
The Guadalcanal campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by the United States, was an Allies of World War II, Allied offensive against forces of the Empire of Japan in the Solomon Islands during th ...
and saw bitter fighting between Japanese and U.S. troops. The Americans were ultimately victorious. At the end of
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
,
Honiara
Honiara () is the capital and largest city of Solomon Islands, situated on the northwestern coast of Guadalcanal. , it had a population of 92,344 people. The city is served by Honiara International Airport and the seaport of Point Cruz, and lies ...
, on the north coast of Guadalcanal, became the new capital of the
British Solomon Islands Protectorate and later the capital of the independent nation of Solomon Islands.
Geography
Guadalcanal is the largest island in
Solomon Islands
Solomon Islands, also known simply as the Solomons,John Prados, ''Islands of Destiny'', Dutton Caliber, 2012, p,20 and passim is an island country consisting of six major islands and over 1000 smaller islands in Melanesia, part of Oceania, t ...
, with a total land area of , and has a population of 155,605 people, making it the second-most populous island in the country after Malaita.
Mount Popomanaseu is the island's highest point and the highest in Solomon Islands, with an elevation of above sea level. The Mbokokimbo River is the island's longest river, with a total length of .
Topography
List of peaks in Guadalcanal by elevation
*
Mount Popomanaseu –
*
Mount Makarakomburu –
*Mount Tanareirei –
*Mount Namolava –
*Makaratanggoe –
*Mount Latinarau –
*Mount Kaichui –
*Mount Vatuchichi –
*Mount Tambunanguu –
*Mount Tohasa –
*Mount Pinau –
*Mount Nasuha –
*Mount Tatuve –
*Mount Ngalighombe –
*Mount Vatupochau –
*Mount Kemau –
*Mount Vatunjae –
*Mount Chaunapaho –
*Mount Tingge Tingge –
*Chupu Tambu –
*Mount Hanihanikaro –
*Mount Vatu Horoi –
*Lumulumuchichi –
*Mount Lambuhila –
*Mount Manuchuma –
*Mount Vatutora –
*Mount Rauramba –
*Mount Vausu –
*Mount Vuro –
*Mount Taluva –
*Mount Gallego –
*Mount Popori –
*Mount Valivalisi –
*Mount Na Vatu –
*Mount Tughuruloki –
*Mount Mbelapoke –
*Mount Vungana –
*Mount Esperance –
River system
List of longest rivers by length
*Mbokokimbo River –
*Lungga River –
*Mbalisuna River –
*Mberande River –
*Mongga River –
*Itina River –
*Aola River –
*Simiu River –
*Rere River –
*Kombito River –
*
Matanikau River –
*Koloula River –
History
Early history
The island has been settled since at least 4500–2500 BC based on archaeological finds at Poha Cave and Vatuluma Posovi.
During the period 1200-800 BC, Austronesian
Lapita
The Lapita culture is the name given to a Neolithic Austronesian people and their distinct material culture, who settled Island Melanesia via a seaborne migration at around 1600 to 500 BCE. The Lapita people are believed to have originated fro ...
peoples settled the islands.
A
Spanish expedition from
Peru
Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...
in 1568 under the command of
Álvaro de Mendaña de Neira
Álvaro de Mendaña y Neira (or Neyra) (1 October 1542 – 18 October 1595) was a Spanish navigator, explorer, and cartographer, best known for two of the earliest recorded expeditions across the Pacific Ocean in 1567 and 1595. His voyages led t ...
were the first Europeans to see the island. Mendaña's subordinate, Pedro de Ortega Valencia, named the island after his home town
Guadalcanal
Guadalcanal (; indigenous name: ''Isatabu'') is the principal island in Guadalcanal Province of Solomon Islands, located in the southwestern Pacific Ocean, northeast of Australia. It is the largest island in the Solomons by area and the second- ...
in Andalusia, Spain.
In the years that followed the discovery, the island was variously referred to as Guadarcana, Guarcana, Guadalcana, and Guadalcanar, which reflected different pronunciations of its name in Andalusian Spanish.
European settlers, whalers, and missionaries began to arrive in the 18th and 19th centuries. With these outsiders also arrived foreign institutions such as forced labour. Beginning during the 1860s, about 60,000 natives from many parts of the Solomon Islands were indentured and sent to Australia or Fiji by British authorities to work on plantations. This system continued into the 1890s.
In the 1880s, the Germans and the British vied for control of the Solomons. Germany established a protectorate over the northern Solomons in 1884, while in 1893, the
British Solomon Islands Protectorate was proclaimed, which included the island of Guadalcanal.
Germany eventually handed over most of their protectorate to Britain, though, in 1899. By the early 20th century, large agricultural plantations (specialising in
copra
Copra (from ; ; ; ) is the dried, white flesh of the coconut from which coconut oil is extracted. Traditionally, the coconuts are sun-dried, especially for export, before the oil, also known as copra oil, is pressed out. The oil extracted ...
), run mainly by Australians, were established in the region. Guadalcanal was not seriously affected by World War I.
In 1932, the British confirmed the name Guadalcanal in line with the town in Andalusia, Spain.
Second World War
In the months following the
attack on Pearl Harbor
The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at Naval Station Pearl Harbor, its naval base at Pearl Harbor on Oahu, Territory of ...
in December 1941, the Japanese drove the Americans out of the
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
, the British out of
British Malaya
The term "British Malaya" (; ) loosely describes a set of states on the Malay Peninsula and the island of Singapore that were brought under British Empire, British hegemony or control between the late 18th and the mid-20th century. Unlike the ...
, and the Dutch out of the
East Indies
The East Indies (or simply the Indies) is a term used in historical narratives of the Age of Discovery. The ''Indies'' broadly referred to various lands in Eastern world, the East or the Eastern Hemisphere, particularly the islands and mainl ...
. The Japanese then began to expand into the western Pacific, occupying many islands in an attempt to build a defensive ring around their conquests and threaten the lines of communication from the United States to Australia and New Zealand. The Japanese reached Guadalcanal in May 1942.
When an American reconnaissance mission spotted construction of a Japanese airfield at
Lunga Point on the north coast of Guadalcanal, the situation became critical. This new Japanese airfield represented a threat to Australia, so as a matter of urgency, despite not being adequately prepared, the United States conducted its first amphibious landing of the war on Guadalcanal. The initial landings of the
1st Marine Division
The 1st Marine Division (1st MARDIV) is a Marine (military), Marine Division (military), division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendleton, California. It is the ground combat element of the I Marine E ...
on 7 August 1942 secured the airfield with little difficulty, but holding the airfield for the next six months against combined Japanese ground assault, air attack and naval bombardment was one of the most hotly contested campaigns in the entire Pacific theater of war.
Immediately after landing on the island, U.S. Navy
Seabee
United States Naval Construction Battalions, better known as the Navy Seabees, form the U.S. Naval Construction Forces (NCF). The Seabee nickname is a heterograph of the initial letters "CB" from the words "Construction Battalion". Dependi ...
s began finishing the airfield begun by the Japanese. It was then named
Henderson Field after a Marine aviator killed in combat during the
Battle of Midway
The Battle of Midway was a major naval battle in the Pacific Ocean theater of World War II, Pacific Theater of World War II that took place on 4–7 June 1942, six months after Japan's attack on Pearl Harbor and one month after the Battle of t ...
. Aircraft operating from Henderson Field during the campaign were a mix of U.S. Marine, Army, Navy, and other Allied aircraft that became known as the
Cactus Air Force. They defended the airfield and threatened any Japanese ships that ventured too close to the island during daylight hours. At night, however, Japanese naval forces were frequently able to shell the airfield and deliver troops with supplies, retiring before daylight. The Japanese used fast ships, namely destroyers, to conduct this reinforcement and supply effort, which became known as the
Tokyo Express
The Tokyo Express was the name given by Allied forces to the use of Imperial Japanese Navy ships at night to deliver personnel, supplies, and equipment to Japanese forces operating in and around New Guinea and the Solomon Islands during the ...
. So many ships from both sides were sunk in the many naval engagements in and around the Solomon Island chain that the nearby waters came to be referred to as
Ironbottom Sound
"Ironbottom Sound" (alternatively Iron Bottom Sound or Ironbottomed Sound or Iron Bottom Bay) is the name given by Allied sailors to the stretch of water at the southern end of The Slot between Guadalcanal, Savo Island, and Florida Island o ...
.

The naval
Battle of Cape Esperance was fought on 11 October 1942 in the waters off the northwest coast of Guadalcanal. During the engagement, the
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
intercepted and defeated a Japanese formation of ships on their way down "
the Slot" to reinforce and resupply troops on the island, suffering losses of their own in the process. The multi-day
Naval Battle of Guadalcanal
The Naval Battle of Guadalcanal took place from 12 to 15 November 1942 and was the decisive engagement in a series of naval battles between Allies of World War II, Allied (primarily American) and Imperial Japanese Armed Forces, Imperial Japan ...
in early November marked a critical turning point in the campaign. Allied naval forces engaged a large, experienced Japanese surface force at night and forced it to withdraw, sinking the
IJN battleship ''Kirishima'' in the process. This was one of only two times in the Pacific theater of war that two battleships engaged each other in combat, with the next such engagement occurring in 1944 during the
Battle of Leyte Gulf
The Battle of Leyte Gulf () 23–26 October 1944, was the largest naval battle of World War II and by some criteria the largest naval battle in history, with over 200,000 naval personnel involved.
By late 1944, Japan possessed fewer capital sh ...
. Some Japanese viewpoints consider these naval engagements, which showcased the improving capability of Allied warships to challenge the Imperial Japanese Navy's significant advantage in night-fighting techniques, to be just as significant as the Battle of Midway in turning the tide against them.
After six months of hard combat in and around Guadalcanal, the Japanese forces on the island were critically undersupplied and no longer combat effective, while Allied troops were steadily increasing in quantity and quality. Remaining Japanese forces on the island were evacuated at
Cape Esperance on the northwest coast in February 1943. American authorities declared Guadalcanal secure on 9 February 1943. The Guadalcanal campaign was a major turning point in the war, as it stopped further Japanese expansion.
Two U.S. Navy ships have been named for the campaign:
*
USS ''Guadalcanal'' (CVE-60) was a World War II escort carrier.
*
USS ''Guadalcanal'' (LPH-7) was an amphibious assault ship.
To date, the only
U.S. Coast Guardsman recipient of the
Medal of Honor
The Medal of Honor (MOH) is the United States Armed Forces' highest Awards and decorations of the United States Armed Forces, military decoration and is awarded to recognize American United States Army, soldiers, United States Navy, sailors, Un ...
is Signalman 1st Class
Douglas Albert Munro
Douglas Albert Munro (October 11, 1919 – September 27, 1942) was a United States Coast Guard, United States coast guardsman who was posthumously decorated with the Medal of Honor for an act of "extraordinary heroism" during World War II. He i ...
, awarded posthumously for his extraordinary heroism on 27 September 1942 at
Point Cruz. Munro provided covering fire and helped evacuate 500 besieged Marines from a beach at Point Cruz; he was killed during the evacuation. During the
Battle for Henderson Field
The Battle for Henderson Field, also known as the Battle of Guadalcanal or Battle of Lunga Point by the Japanese, took place from 23 to 26 October 1942 on and around Guadalcanal in the Solomon Islands. The battle was a land, sea, and air battle ...
, the Medal of Honor was also awarded to
John Basilone, who was later killed in action during the
Battle of Iwo Jima
The was a major battle in which the United States Marine Corps (USMC) and United States Navy (USN) landed on and eventually captured the island of Iwo Jima from the Imperial Japanese Army (IJA) during World War II. The American invasion, desi ...
in 1945.
After the war, American and Japanese groups repeatedly visited Guadalcanal to search for the remains of missing soldiers. The bodies of some 7,000 Japanese troops remain missing on the island, and islanders still bring the Japanese groups bones that they say are those of unearthed Japanese soldiers.
Postwar years
Immediately after the Second World War, the capital of the British Solomon Islands Protectorate was moved to Honiara on Guadalcanal from its previous location at
Tulagi
Tulagi, less commonly known as Tulaghi, is a small island in Solomon Islands, just off the south coast of Ngella Sule. The town of the same name on the island (pop. 1,750) was the capital of the British Solomon Islands Protectorate from 1896 t ...
in the
Florida Islands. In 1952, the
high commissioner for the Western Pacific
The high commissioner for the Western Pacific was the chief executive officer of the British Western Pacific Territories, a United Kingdom, British British Empire, colonial entity, which existed from 1877 until 1976. Numerous colonial possessions ...
moved from
Fiji
Fiji, officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about ...
to Honiara, and the post was combined with that of the governor of the Solomon Islands. The airfield which was the cause of the fighting in 1942, and which became well known as Henderson Field, is now the
international airport
An international airport is an airport with customs and border control facilities enabling passengers to travel between countries. International airports are usually larger than domestic airports, and feature longer runways and have faciliti ...
for the Solomon Islands. It sits about five miles to the east of Honiara. The secondary airfield, known as "Fighter Two", is now the local golf course.
Civil war
In early 1999, long-simmering tensions between the local Guale people on Guadalcanal and more recent migrants from the neighbouring island of
Malaita
Malaita is the primary island of Malaita Province in Solomon Islands. Malaita is the most populous island of the Solomon Islands, with a population of 161,832 as of 2021, or more than a third of the entire national population. It is also the se ...
erupted into violence. The Guadalcanal Revolutionary Army, later called
Isatabu Freedom Movement, began terrorising Malaitans in the rural areas of the island in an effort to force them out of their homes. About 20,000 Malaitans fled to the capital, and others returned to their home island; Guale residents of Honiara fled. The city became a Malaitan
enclave
An enclave is a territory that is entirely surrounded by the territory of only one other state or entity. An enclave can be an independent territory or part of a larger one. Enclaves may also exist within territorial waters. ''Enclave'' is so ...
and the
Malaita Eagle Force took over government. The
Royal Australian Navy
The Royal Australian Navy (RAN) is the navy, naval branch of the Australian Defence Force (ADF). The professional head of the RAN is Chief of Navy (Australia), Chief of Navy (CN) Vice admiral (Australia), Vice Admiral Mark Hammond (admiral), Ma ...
and
Royal New Zealand Navy
The Royal New Zealand Navy (RNZN; ) is the maritime arm of the New Zealand Defence Force. The fleet currently consists of eight ships. The Navy had its origins in the Naval Defence Act 1913, and the subsequent acquisition of the cruiser , whi ...
deployed vessels to the area to protect the expatriate community resident mostly in Honiara. In 2003, the
Pacific Forum negotiated the intervention of
RAMSI or Operation Helpem Fren involving Australia, New Zealand, and other Pacific island nations.
Vilu War Museum

About 25 km (15 mi) from Honiara to the west, Vilu War Museum houses an outdoor collection of remains of various parts of military equipment and of several aircraft. Several memorials for the American, Australian, Fijian, New Zealand, and Japanese soldiers who died were erected, as well.
Fauna
The island hosts a native
marsupial
Marsupials are a diverse group of mammals belonging to the infraclass Marsupialia. They are natively found in Australasia, Wallacea, and the Americas. One of marsupials' unique features is their reproductive strategy: the young are born in a r ...
known as the
phalanger or grey cuscus, ''
Phalanger orientalis''. The only other mammals are bats and rodents.
Many species of colourful parrots are found there, and
estuarine crocodiles inhabit the island's shores. In recent times, these crocodiles have been found only on the Weather Coast in the south of the island, but during World War II, they were found along the north coast in the vicinity of the airstrip where the fighting was taking place, as evidenced by names such as
Alligator Creek.
Venomous snakes are rare on the island and are not considered to be a serious threat, but a kind of
centipede
Centipedes (from Neo-Latin , "hundred", and Latin , "foot") are predatory arthropods belonging to the class Chilopoda (Ancient Greek , ''kheilos'', "lip", and Neo-Latin suffix , "foot", describing the forcipules) of the subphylum Myriapoda, ...
there has a particularly nasty bite.
[A Short Walk On Guadalcanal]
American Heritage. May/June 1993. Volume 44, Issue 3
The Guadalcanal Watersheds form a site that has been identified by
BirdLife International
BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding i ...
as an
important bird area
An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations.
IBA was developed and sites are identified by BirdLife Int ...
, because it supports populations of
threatened
A threatened species is any species (including animals, plants and fungi) which is vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensatio ...
or
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
bird species. At 376,146 ha (1,452 sq mi), it covers some 70% of the island, extending along the southern coast inland to the central highlands, and contains riverine and lowland
tropical rainforest
Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the Equator. They are a subset of the tropical forest biome that occurs roughly within the 28° latitudes (in the torrid zo ...
, as well as the greatest contiguous area of
cloud forest
A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest, is a generally tropical or subtropical, evergreen, Montane forest, montane, Tropical and subtropical moist broadleaf forests, moist forest characteri ...
in the Solomons. Although it also contains gardens and old village sites, most of it has never been permanently inhabited. Significant birds for which the site was identified include
chestnut-bellied imperial pigeons,
Woodford's rails,
Guadalcanal moustached kingfishers,
Meek's lorikeet
Meek's lorikeet (''Vini meeki'') is a species of parrot in the family Psittaculidae.
It is found on Bougainville Island in Papua New Guinea and the Solomon Islands.
Its natural habitats are subtropical or tropical moist lowland forest and subtropi ...
s,
Guadalcanal honeyeaters,
Guadalcanal thicketbirds, and
Guadalcanal thrushes. Potential threats to the site include
logging
Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucks[invasive species
An invasive species is an introduced species that harms its new environment. Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native spec ...]
.
References
Further reading
*
Frank, Richard B. ''Guadalcanal: The Definitive Account of the Landmark Battle'', Penguin Books, 1990.
*Hadden, Robert Lee. 2007
"The Geology of Guadalcanal: a Selected Bibliography of the Geology, Natural History, and the History of Guadalcanal."by Robert Lee Hadden. Alexandria, VA: Topographic Engineering Center.
*
*''
Guadalcanal Diary'', 1943 book by Richard Tregaskis
*''
Guadalcanal Diary'', 1943 film based on the book
*
James R. "Rube" Garrett ''A Marine Diary: My Experiences on Guadalcanal''
External links
Guadalcanal Odyssey (1975) Leslie Nielsen Part 1
{{Authority control
Important Bird Areas of the Solomon Islands
Islands of the Solomon Islands
World War II sites in the Solomon Islands