Although the military history of Oceania probably goes back thousands of years to the first human settlement in the region, little is known about war in Oceania until the arrival of Europeans. The introduction of firearms transformed conflict in the region; in some cases helping to unify regions and in others sparking large-scale tribal and civil wars. Force and the threat of force played a role in the annexation of most of Oceania to various European and American powers, but only in Australia and New Zealand did wars of conquest occur. Western Oceania was a major site of conflict in World War II as the Japanese Empire sought to expand southwards. Since 1945 the region has been mostly at peace, although Melanesia has suffered from Indonesian expansionism in some areas and civil wars and coups in others. The Australian Defence Force has the largest military force in Oceania.
Pre-European warfare
Violent conflict was common to nearly all the peoples of Oceania in the period before European arrival, although there is much debate about the frequency of warfare, which of course varied between different societies. Some scholars have argued that peaceful societies are very unusual, with Lawrence H. Keeley of the University of Illinois calculating that 87% of tribal societies were at war more than once per year, and some 65% of them were fighting continuously. For instance, in Arnhem Land in northern Australia, a study of warfare among the Murngin people in the late-19th century found that over a 20-year period no less than 200 out of 800 men, or 25 percent of all adult males, had been killed in intertribal warfare. On the other hand, New Zealand historian James Belich cautions against the assumption that tribal societies were inevitably in a constant state of war, pointing out that oral histories tend to emphasise warfare rather than peace even if there is far more of the latter than the former, and that estimating the frequency of war based on the number of weapons and fortifications is like estimating the number of house fires based on the number of insurance policies. However it is clear that in most societies warriors were held in high esteem and that completely pacifist societies were very unusual. One exception was the Moriori of the Chatham Islands.
A range of weapons were used in Oceania. These included the woomera and boomerang in Australia, and the bow in some parts of Melanesia and Polynesia. Nearly all Oceanic peoples had spears and clubs, although the Māori of New Zealand were unusual in having no distance weapons. Weapons could be very simple or elaborately crafted, with distance weapons in particular requiring a great deal of craftsmanship to be accurate. It has been estimated that Aboriginal spears were more accurate than nineteenth-century European firearms.
Most pre-European conflicts in Oceania took place between peoples with a shared culture, and often language. However, there were also wars between peoples of different cultures, for example in Australia and Papua New Guinea, each of which contains many different cultures, and in central Polynesia, where island groups are close enough for parties of war canoes to travel to other territories.
Impact of European contact The arrival of Europeans in Oceania had dramatic consequences, especially in parts of the area which had no previous contact with Asia. In many cases European weapons, transport and sometimes troops massively upset an existing balance of power. One example of this was the New Zealand Musket Wars in which iwi (tribes) with muskets attacked iwi who lacked them. Serious warfare raged throughout New Zealand for nearly thirty years, only ending when all tribes had acquired muskets. The presence of European ships also affected Māori warfare, for example enabling Māori to travel to the Chatham Islands, where they almost wiped out the Moriori. The presence of firearms could also turn what would otherwise have been minor squabbles into full-scale wars. One such was the Nauruan Tribal War, which lasted for a decade and ultimately resulted in the annexation of Nauru by Germany. In other parts of the Pacific, particular leaders were able to use their contacts with Europeans to unify their islands. One leader who did this was the Fijian chief Tanoa Visawaqa who, in the 1840s, used arms purchased from a Swedish mercenary to subdue most of Western Fiji. Tonga was also united into a kingdom around this time.
Armed force, or the threat thereof, was sometimes used to gain European sovereignty over Oceanic nations. One example of this was the 'Bayonet Constitution' of Hawaii. This was not the only method of winning sovereignty. In some cases a treaty was peacefully agreed to, but even in these cases violence or the fear of it was often still a factor. For example, New Zealand's Treaty of Waitangi was presented to Māori partly as a way to prevent a French invasion and partly as a way to stop intertribal warfare; while Tonga became a British protected state as a result of an attempt to oust the Tongan king. In other parts of the region, such as Australia, European sovereignty was simply proclaimed without any attempt to win the consent of the indigenous peoples. In many cases, including those in which sovereignty had been ceded more or less voluntarily, force and the threat of force were required to maintain European dominance.
Wars of colonisation
Although virtually every part of Oceania was at some point annexed by a foreign power, in most cases there was no major European settlement. The smallness of most Pacific islands coupled with their lack of resources or strategic importance meant that during the nineteenth century they were targets for neither large-scale immigration nor substantial military involvement. The majority of Europeans in most of the islands were colonial administrators, missionaries and traders. The two major exceptions to this were Australia and New Zealand, both of which had enough land and cool enough climates to attract huge numbers of British settlers. These were initially welcomed by most Māori and rejected by most Australian Aborigines, but in both cases wars broke out; In Australia, when settlers wanted more land than the indigenous peoples were willing to part with, land was the primary motivation. In New Zealand, although land was an issue, major conflicts were primarily over who controlled the country. In Australia there was a mixture of battles, guerrilla tactics and genocide, while in New Zealand fighting was characterised by assaults on complicated defensive positions, pā, though on occasion warfare was more or less conventional and on other occasions both sides used guerrilla tactics. There was a distinct difference in scale - at the height of the New Zealand Wars 18,000 English troops were required, in addition to settler and "loyal native" forces to contain the belligerent minority of the well armed and militarily competent Māori. Nevertheless, in both cases 'native resistance' was eventually subdued although in Australia occasional fighting continued into the twentieth century.
World War I
Although World War I occurred almost entirely in Europe and the Middle East, Oceania was involved in a number of ways. British settlers and their descendants in Australia and New Zealand enthusiastically signed up to fight for their 'mother country', as did some Māori. Australian and New Zealand troops, joined together in ANZAC formations, fought and died in large numbers in the Gallipoli Campaign, the Western Front and in the Sinai and Palestine Campaign in the Middle East.
In Oceania itself, islands possessed by Germany were invaded by Japan (see Japan during World War I), Australia (German New Guinea and Nauru), and New Zealand (German Samoa), with little serious resistance apart from the Battle of Bita Paka in German New Guinea.
After the war the islands were granted to their new conquerors by the League of Nations as mandated territories. In this way, Japan took control of the Mariana Islands, Caroline Islands and Marshall Islands, while Australia took over German New Guinea and New Zealand took over German Samoa. Nauru was administered by the United Kingdom in conjunction with Australia and New Zealand.
World War II
The western Pacific was a major site of fighting between Japan and the United States-led Allies. Japan conquered most of Melanesia and South-East Asia, and brought the United States into the war by bombing the US possession of Hawaii at Pearl Harbor. The inhabitants of areas conquered by the Japanese were often harshly treated; for example 1,200 Nauruans were forcibly transported as labour to the Chuuk islands, where 463 died.Haden, J. D. 2000. Nauru: a middle ground in World War II Pacific Magazine URL Accessed 2006-05-05 Papua New Guinea was a major battleground, and the Japanese possessions taken from Germany during World War I were re-taken by the United States, with the Mariana Islands serving as a US bombing base. New Zealand and most of Polynesia remained relatively untouched by the war, apart from the sending of troops and the visits of American servicemen on rest and recreation leave.
As with the First World War, New Zealand and Australia were enthusiastic defenders of Britain in World War II, and some other member countries of the British Empire also sent troops. New Zealand forces served primarily in Europe, fighting in Greece, North Africa and Italy, but with some forces serving in Singapore, Fiji, and in the Solomon Islands campaign. Australia initially sent troops to Europe, but most were recalled to the Pacific following Japan's push southward, which included air raids on Darwin and other parts of Australia in 1942-43. Australian soldiers fought crucial battles along the Kokoda Track in Papua New Guinea and in the Borneo campaign.
Post 1945 Throughout the second half of the twentieth century and into the twenty-first, Oceania was mostly peaceful. Exceptions to this was Melanesia (where there were attempts by Indonesia to extend its territory in the area), a civil war in Bougainville and several coups in Fiji. During this time many Pacific nations won their independence, usually peacefully. However a number of islands remained territories of European, Asian and American powers, and several were used as nuclear testing sites. In the 1970s, these activities became highly controversial. Meanwhile, several Oceanic countries, notably Australia and New Zealand, contributed combat and peacekeeping troops to a range of conflicts outside of Oceania.
Nuclear testing in Oceania Due to its low population, Oceania was a popular location for atmospheric and underground nuclear tests. Tests were conducted in various locations by the United Kingdom (Operation Grapple and Operation Antler), the United States (Bikini atoll and the Marshall Islands) and France (Moruroa), often with devastating consequences for the inhabitants. In 1954, for example, fallout from the American Castle Bravo hydrogen bomb test in the Marshall Islands was such that the inhabitants of the Rongelap Atoll were forced to abandon their island. Three years later the islanders were allowed to return, but suffered abnormally high levels of cancer. They were evacuated again in 1985 and in 1996 given $45 million in compensation. A series of British tests were also conducted in the 1950s at Maralinga in South Australia, forcing the removal of the Pitjantjatjara and Yankunytjatjara peoples from their ancestral homelands. The atoll of Moruroa in French Polynesia became notorious as a site of French nuclear testing, primarily because tests were carried out there after most Pacific testing had ceased. These tests were opposed by most other nations in Oceania. The last atmospheric test was conducted in 1974, and the last underground test in 1996.
Fijian coups