Bougainville campaignThe Bougainville campaign was a series of land and naval battles of the Pacific campaign of World War II between Allied forces and the Empire of Japan, named after the island of Bougainville. It was part of Operation Cartwheel, the Allied grand strategy in the South Pacific. The campaign took place in the Northern Solomons in two phases. The first phase, in which American troops landed and held the perimeter around the beachhead at Torokina, lasted from November 1943 through November 1944.
Bonin IslandsThe Ogasawara Islands, also known as the Bonin Islands, are a Japanese archipelago of over 30 subtropical and tropical islands located around SSE of Tokyo and northwest of Guam. The group as a whole has a total area of but only two of the islands are permanently inhabited, Chichijima and Hahajima. Together, their population was 2560 as of 2021. Administratively, Tokyo's Ogasawara Subprefecture also includes the settlements on the Volcano Islands and the Self-Defense Force post on Iwo Jima.
Debate over the atomic bombings of Hiroshima and NagasakiSubstantial debate exists over the ethical, legal, and military aspects of the atomic bombings of Hiroshima and Nagasaki on 6 August and 9 August 1945 at the close of World War II (1939–45). On 26 July 1945, United States President Harry S. Truman, British Prime Minister Winston Churchill and President of China Chiang Kai-shek issued the Potsdam Declaration, which outlined the terms of surrender for the Empire of Japan as agreed upon at the Potsdam Conference.
KempeitaiThe Kempeitai was the military police of the Imperial Japanese Army from 1881 to 1945. The organization also shared civilian secret police, espionage, and counter-intelligence roles within Japan and its occupied territories, and was notorious for its brutality and role in suppressing dissent. The broad duties of the Kempeitai included maintaining military discipline, enforcing conscription laws, protecting vital military zones, and investigating crimes among soldiers.
Nanjing MassacreThe Nanjing Massacre (, Nankin Daigyakusatsu) or the Rape of Nanjing (formerly romanized as Nanking) was the mass murder of Chinese civilians in Nanjing, the capital of the Republic of China, immediately after the Battle of Nanking in the Second Sino-Japanese War, by the Imperial Japanese Army. Beginning on December 13, 1937, the massacre lasted six weeks. The perpetrators also committed other war crimes such as mass rape, looting, and arson. The massacre is considered to be one of the worst wartime atrocities.
Ultraadopted by British military intelligence in June 1941 for wartime signals intelligence obtained by breaking high-level encrypted enemy radio and teleprinter communications at the Government Code and Cypher School (GC&CS) at Bletchley Park. Ultra eventually became the standard designation among the western Allies for all such intelligence. The name arose because the intelligence obtained was considered more important than that designated by the highest British security classification then used (Most Secret) and so was regarded as being Ultra Secret.
KokutaiKokutai is a concept in the Japanese language translatable as "system of government", "sovereignty", "national identity, essence and character", "national polity; body politic; national entity; basis for the Emperor's sovereignty; Japanese constitution" or nation. The word is also a short form of the (unrelated) name for the National Sports Festival of Japan. Kokutai originated as a Sino-Japanese loanword from Chinese guoti (; "state political system; national governmental structure"). The Japanese compound word joins 國 and 體.
Law of JapanThe law of Japan refers to the legal system in Japan, which is primarily based on legal codes and statutes, with precedents also playing an important role. Japan has a civil law legal system with six legal codes, which were greatly influenced by Germany, to a lesser extent by France, and also adapted to Japanese circumstances. The Japanese Constitution enacted after World War II is the supreme law in Japan. An independent judiciary has the power to review laws and government acts for constitutionality.
Territory of PapuaThe Territory of Papua comprised the southeastern quarter of the island of New Guinea from 1883 to 1975. In 1883, the Government of Queensland annexed this territory for the British Empire. The United Kingdom Government refused to ratify the annexation but in 1884 a protectorate was proclaimed over the territory, then called "British New Guinea". There is a certain ambiguity about the exact date on which the entire territory was annexed by the British. The Papua Act 1905 recites that this happened "on or about" 4 September 1888.
Allied submarines in the Pacific WarAllied submarines were used extensively during the Pacific War and were a key contributor to the defeat of the Empire of Japan. During the war, submarines of the United States Navy were responsible for 56% of Japan's merchant marine losses; other Allied navies added to the toll. The war against shipping was the single most decisive factor in the collapse of the Japanese economy. Allied submarines also sank a large number of Imperial Japanese Army (IJA) troop transports, killing many thousands of Japanese soldiers and hampering the deployment of IJA reinforcements during the battles on the Pacific islands.
