Dominion of New Zealand in the context of "Allies in World War II"

A dominion was any one of several largely self-governing countries that remained, especially in the first half of the 20th century, under the British Crown as parts of the British Empire and then the British Commonwealth of Nations. The list of dominions as at 1926 included Australia, Canada, the Irish Free State, New Zealand, Newfoundland, and South Africa; later Ceylon (now Sri Lanka), India, and Pakistan also became dominions for short periods. Progressing from colonies, their degrees of colonial self-governance increased (and, in one case, decreased) but did so unevenly over the late 19th century through the 1930s. In the years following the Second World War, the British Empire was refashioned into the more modern (and more post-colonial) Commonwealth of Nations (after which the former dominions were often referred to as the Old Commonwealth). By the time this transition was formally finalised, in 1949, the old dominions had become more autonomous and independent nation states, each in their own right, either as a Commonwealth republic or a Commonwealth realm.

In 1925, the government of the United Kingdom created the Dominions Office from the Colonial Office, although for the next five years they shared the same secretary in charge of both offices. "Dominion status" was first accorded to Australia, Canada, the Irish Free State, New Zealand, Newfoundland, and South Africa at the 1926 Imperial Conference through the Balfour Declaration of 1926, recognising Great Britain and the Dominions as "autonomous communities within the British Empire, equal in status, in no way subordinate one to another in any aspect of their domestic or external affairs, though united by a common allegiance to the Crown and freely associated as members of the British Commonwealth of Nations". Their full legislative independence was subsequently confirmed in the Statute of Westminster 1931. In the 1920s and 1930s, they began to represent themselves in international bodies, in treaty making, and in foreign capitals. Vestiges of empire and colonial rule lasted in some dominions late into the 20th century and indeed still exist today.

The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members were the "Big Four" – the United Kingdom, Soviet Union, United States, and China.

Membership in the Allies varied during the course of the war. When the conflict broke out on 1 September 1939, the Allied coalition consisted of the United Kingdom, France, and Poland, as well as their respective dependencies, such as British India. They were joined by the independent dominions of the British Commonwealth: Canada, Australia, New Zealand and South Africa. Consequently, the initial alliance resembled that of the First World War. As Axis forces began invading northern Europe and the Balkans, the Allies added the Netherlands, Belgium, Norway, Greece, and Yugoslavia. The Soviet Union, which initially had a nonaggression pact with Germany and participated in its invasion of Poland, joined the Allies after the German invasion of the Soviet Union in June 1941. The United States, while providing some material support to European Allies since September 1940, remained formally neutral until the Japanese attack on Pearl Harbor in December 1941, after which it declared war and officially joined the Allies. China had already been at war with Japan since 1937, and formally joined the Allies in December 1941.

New Zealand is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island (Te Ika-a-Māui) and the South Island (Te Waipounamu)—and over 600 smaller islands. It is the sixth-largest island country by area and lies east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps (Kā Tiritiri o te Moana), owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland.

The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and subsequently developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1769 the British explorer Captain James Cook became the first European to set foot on and map New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs signed the Treaty of Waitangi, which paved the way for Britain's declaration of sovereignty later that year and the establishment of the Crown Colony of New Zealand in 1841. Subsequently, a series of conflicts between the colonial government and Māori tribes resulted in the alienation and confiscation of large amounts of Māori land. New Zealand became a dominion in 1907; it gained full statutory independence in 1947, retaining the monarch as head of state. Today, the majority of New Zealand's population of around 5.3 million is of European descent; the indigenous Māori are the largest minority, followed by Asians and Pasifika. Reflecting this, New Zealand's culture mainly derives from Māori and early British settlers but has recently broadened from increased immigration. The official languages are English, Māori, and New Zealand Sign Language, with the local dialect of English being dominant.

The Japanese Instrument of Surrender was the printed agreement that formalized the surrender of Japan, marking the end of hostilities in World War II. It was signed by representatives from Japan and from the Allied nations: the United States, China, the United Kingdom (UK), the Soviet Union, Australia, Canada, France, the Netherlands, and New Zealand. The signing took place on the deck of USS Missouri in Tokyo Bay on 2 September 1945.

The date is sometimes known as Victory over Japan Day. However, that designation more frequently refers to the date of Emperor Hirohito's Gyokuon-hōsō (Imperial Rescript of Surrender), the radio broadcast announcement of the acceptance of the terms of the Potsdam Declaration at noon Japan Standard Time on 15 August.

The International Military Tribunal for the Far East (IMTFE), also known as the Tokyo Trial and the Tokyo War Crimes Tribunal, was a military trial convened on April 29, 1946 to try leaders of the Empire of Japan for their crimes against peace, conventional war crimes, and crimes against humanity, leading up to and during World War II. The IMTFE was modeled after the International Military Tribunal (IMT) at Nuremberg, Germany, which prosecuted the leaders of Nazi Germany for their war crimes, crimes against peace, and crimes against humanity.

Following Japan's defeat and occupation by the Allies, the Supreme Commander for the Allied Powers, United States General Douglas MacArthur, issued a special proclamation establishing the IMTFE. A charter was drafted to establish the court's composition, jurisdiction, and procedures; the crimes were defined based on the Nuremberg Charter. The Tokyo War Crimes Tribunal was composed of judges, prosecutors, and staff from eleven countries that had fought against Japan: Australia, Canada, China, France, India, the Netherlands, New Zealand, the Philippines, the Soviet Union, the United Kingdom, and the United States; the defense consisted of Japanese and American lawyers. The Tokyo Trial exercised broader temporal jurisdiction than its counterpart in Nuremberg, beginning from the 1931 Japanese invasion of Manchuria. Twenty-eight high-ranking Japanese military and political leaders were tried by the court, including current and former prime ministers, cabinet members, and military commanders. They were charged with fifty-five separate counts, including the waging wars of aggression, murder, and various war crimes and crimes against humanity (such as torture and forced labor) against prisoners-of-war, civilian internees, and the inhabitants of occupied territories; ultimately, 45 of the counts, including all the murder charges, were ruled either redundant or not authorized under the IMTFE Charter. The Tokyo Trial lasted more than twice as long as the better-known Nuremberg trials, and its impact was similarly influential in the development of international law; similar international war crimes tribunals would not be established until the 1990s.

The Colony of New Zealand was a colony of the United Kingdom from 1841 to 1907. British authority was vested in a governor. The colony had three successive capitals: Okiato (or Old Russell) in 1841; Auckland from 1841 to 1865; and Wellington from 1865. Following the New Zealand Constitution Act 1852, the colony became a Crown colony with its first elected parliament in 1853. Responsible self-government was established in 1856 with the governor required to act on the advice of his ministers. In 1907, the colony became the Dominion of New Zealand.

Australasia was a combined team of athletes from Australia and the Dominion of New Zealand that competed together at the 1908 and 1912 Summer Olympics. When the Olympic Games resumed in 1920 after World War I, the two nations sent separate teams to the Games, and have done so ever since.