First Sino-Japanese War in the context of "Yasukuni Shrine"

The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From August 1910 to September 1945, it included the Japanese archipelago, the Kurils, Karafuto, Korea, and Taiwan. The South Seas Mandate and concessions such as the Kwantung Leased Territory were de jure not internal parts of the empire but dependent territories. In the closing stages of World War II, with Japan defeated alongside the rest of the Axis powers, the formalized surrender was issued on September 2, 1945, in compliance with the Potsdam Declaration of the Allies, and the empire's territory subsequently shrunk to cover only the Japanese archipelago resembling modern Japan.

Under the slogans of "Enrich the Country, Strengthen the Armed Forces" and "Promote Industry" which followed the Boshin War and the restoration of power to the emperor from the shogun, Japan underwent a period of large-scale industrialization and militarization, often regarded as the fastest modernization of any country to date. All of these aspects contributed to Japan's emergence as a great power following the First Sino-Japanese War, the Boxer Rebellion, the Russo-Japanese War, and World War I. Economic and political turmoil in the 1920s, including the Great Depression, led to the rise of militarism, nationalism, statism and authoritarianism, during which Japan joined the Axis alliance with Nazi Germany and Fascist Italy, conquering a large part of the Asia–Pacific; during this period, the Imperial Japanese Army (IJA) and the Imperial Japanese Navy (IJN) committed numerous atrocities and war crimes, including the Nanjing Massacre. There has been a debate over defining the political system of Japan as a dictatorship, which has been disputed due by the absence of a dictator, and over calling it fascist. The other suggested terms were para-fascism, militarism, corporatism, totalitarianism, and police state.

The history of the island of Taiwan dates back tens of thousands of years to the earliest known evidence of human habitation. The sudden appearance of a culture based on agriculture around 3000 BC is believed to reflect the arrival of the ancestors of today's Taiwanese indigenous peoples. People from China gradually came into contact with Taiwan by the time of the Yuan dynasty (1271–1368) and Han Chinese people started settling there by the early 17th century. The island became known by the West when Portuguese explorers discovered it in the 16th century and named it Formosa. Between 1624 and 1662, the south of the island was colonized by the Dutch headquartered in Zeelandia in present-day Anping, Tainan whilst the Spanish built an outpost in the north, which lasted until 1642 when the Spanish fortress in Keelung was seized by the Dutch. These European settlements were followed by an influx of Hoklo and Hakka immigrants from Fujian and Guangdong.

In 1662, Koxinga defeated the Dutch and established a base of operations on the island. His descendants were defeated by the Qing dynasty in 1683 and their territory in Taiwan was annexed by the Qing dynasty. Over two centuries of Qing rule, Taiwan's population increased by over two million and became majority Han Chinese due to illegal cross-strait migrations from mainland China and encroachment on Taiwanese indigenous territory. Due to the continued expansion of Chinese settlements, Qing-governed territory eventually encompassed the entire western plains and the northeast. This process accelerated in the later stages of Qing rule when settler colonization of Taiwan was actively encouraged. The Qing ceded Taiwan and Penghu to Japan after losing the First Sino-Japanese War in 1895. Taiwan experienced industrial growth and became a productive rice- and sugar-exporting Japanese colony. During the Second Sino-Japanese War it served as a base for invasions of China, and later Southeast Asia and the Pacific during World War II.

Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in Asia in 1945, it has been politically divided at or near the 38th parallel between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK). Both countries proclaimed independence in 1948, and the two countries fought the Korean War from 1950 to 1953. The region is bordered by China to the north and Russia to the northeast, across the Amnok (Yalu) and Duman (Tumen) rivers, and is separated from Japan to the southeast by the Korea Strait.

Known human habitation of the Korean peninsula dates to 40,000 BC. The kingdom of Gojoseon, which according to tradition was founded in 2333 BC, fell to the Han dynasty in 108 BC. It was followed by the Three Kingdoms period, in which Korea was divided into Goguryeo, Baekje, and Silla. In 668 AD, Silla conquered Baekje and Goguryeo with the aid of the Tang dynasty, forming Unified Silla; Balhae succeeded Goguryeo in the north. In the late 9th century, Unified Silla collapsed into three states, beginning the Later Three Kingdoms period. In 918, Goguryeo was resurrected as Goryeo, which achieved what has been called a "true national unification" by Korean historians, as it unified both the Later Three Kingdoms and the ruling class of Balhae after its fall. Goryeo, whose name developed into the modern exonym "Korea", was highly cultured and saw the invention of the first metal movable type. During the 13th century, Goryeo became a vassal state of the Mongol Empire. Goryeo overthrew Mongol rule before falling to a coup led by General Yi Seong-gye, who established the Joseon dynasty in 1392. The first 200 years of Joseon were marked by peace; the Hangul, the Korean alphabet was created and Confucianism became influential. This ended with Japanese and Qing invasions, which brought devastation to Joseon and led to Korean isolationism. After the invasions, an isolated Joseon experienced another nearly 200-year period of peace and prosperity, along with cultural and technological development. In the final years of the 19th century, Japan forced Joseon to open up and Joseon experienced turmoil such as the Kapsin Coup, Donghak Peasant Revolution, and the assassination of Empress Myeongseong. In 1895, Japan defeated China in the First Sino-Japanese War and China lost suzerainty over Korea and Korea was placed under further Japanese influence. In 1897, the centuries old Joseon was replaced by the Korean Empire with the Joseon's last king, Gojong, becoming the Emperor of the Korean Empire. Japan's further victory in the 1904–1905 Russo-Japanese War, expelled Russian influence in Korea and Manchuria. In 1905, the Korean Empire became a protectorate of the Empire of Japan. In 1910, the Empire of Japan officially annexed the Korean peninsula.

Nagasaki (長崎, Nagasaki; Japanese pronunciation: [na.ɡaꜜ.sa.kʲi, na.ŋa-], lit. 'Long Cape'), officially Nagasaki City (長崎市, Nagasaki-shi; [na.ɡa.sa.kʲi̥ꜜ.ɕi, na.ɡa.saꜜ.kʲi̥.ɕi, na.ŋa-]), is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan.

Founded by the Portuguese, the port of Nagasaki became the sole port used for trade with the Portuguese and Dutch during the 16th through 19th centuries. The Hidden Christian Sites in the Nagasaki Region have been recognized and included in the UNESCO World Heritage Sites list. Part of Nagasaki was home to a major Imperial Japanese Navy base during the First Sino-Japanese War and Russo-Japanese War. Near the end of World War II, the American atomic bombings of Hiroshima and Nagasaki made Nagasaki the second city in the world to experience a nuclear attack. The city was later rebuilt.

Mutsuhito (睦仁; 3 November 1852 – 29 July 1912), posthumously honored as Emperor Meiji (明治天皇, Meiji Tennō), was the 122nd emperor of Japan according to the traditional order of succession, reigning from 1867 until his death in 1912. His reign is associated with the Meiji Restoration of 1868, which ended the Tokugawa shogunate and began rapid changes that transformed Japan from an isolationist, feudal state to an industrialized world power. Emperor Meiji was the first monarch of the Empire of Japan, and presided over the Meiji era.

At the time of Mutsuhito's birth, Japan was a feudal and pre-industrial country dominated by the isolationist Tokugawa shogunate and the daimyō subject to it, who ruled over Japan's 270 decentralized domains. The opening of Japan to the West from 1854 fueled domestic demands for modernization, and when Mutsuhito became emperor after the death of his father Emperor Kōmei in 1867, it triggered the Boshin War, in which samurai (mostly from the Chōshū and Satsuma Domains) defeated the shogunate and restored power in his name. Documents issued during his reign include the Charter Oath of 1868, Meiji Constitution of 1889, Imperial Rescript to Soldiers and Sailors of 1882, and Imperial Rescript on Education of 1890, in which he was advised by a group of oligarchs known as the genrō. Other major events which occurred during his reign include the establishment of the Cabinet in 1885, Privy Council in 1888, Imperial Diet in 1890, and military victories over China in the First Sino-Japanese War and over Russia in the Russo-Japanese War. Taiwan and Korea were annexed in 1895 and 1910, respectively. Emperor Meiji died in 1912, and was succeeded by his eldest son, Yoshihito.

Keelung (/kiːˈlʊŋ/ kee-LUUNG; Chinese: 基隆; pinyin: Jīlóng; Pe̍h-ōe-jī: Ke-lâng), Chilung or Jilong (/dʒiːˈlʊŋ/ jee-LUUNG), officially known as Keelung City, is a major port city in northeastern Taiwan. The city is part of the Taipei–Keelung metropolitan area with neighboring New Taipei City and Taipei. Nicknamed the Rainy Port for its frequent rain and maritime role, the city is Taiwan's second largest seaport (after Kaohsiung), and was the world's 7th largest port in 1984.

In 1626, the Spanish established Fort San Salvador at present-day Keelung, an area inhabited by Taiwanese indigenous peoples. Control of the area eventually passed to the Qing dynasty. Fighting between China and Europeans around Keelung occurred in the 19th century during the First Opium War and the Sino-French War. The island of Taiwan was ceded to the Empire of Japan in 1895 after the First Sino-Japanese War; under Japanese rule the city was called Kirun. Keelung became part of Taiwan Province under the Republic of China after 1945. Administratively, the city became a first-level subdivision in 2018 after the provincial government was abolished.

The Qing dynasty ruled over the island of Taiwan from 1683 to 1895. The Qing dynasty sent an army led by General Shi Lang to defeat the Ming loyalist Kingdom of Tungning in 1683. Taiwan was then formally annexed in April 1684.

Taiwan was governed as Taiwan Prefecture of Fujian Province until the establishment of Fujian–Taiwan Province in 1887. The Qing dynasty extended its control of Taiwan across the western coast, the western plains, and the northeast over the 18th and 19th centuries. The Qing government did not pursue an active colonization policy and restricted Han migration to Taiwan for the majority of its rule out of fear of rebellion and conflict with the Taiwanese indigenous peoples. Han migrants were barred from settling on indigenous land, and markers were used to delineate the boundaries of settled areas and mountain dwelling aborigines. Despite Qing restrictions, settlers continued to enter Taiwan and push the boundaries of indigenous territory, resulting in the expansion of Qing borders in Taiwan to encompass all of the western plains and the northeast. The lack of state-sponsored colonial administration led to frequent rebellions by Han settlers. By the end of Qing rule in 1895, Taiwan's ethnic Han population had increased by over two million, with some estimates suggesting over three million, making Hans the majority demographic on the island. Taiwan was ceded to the Empire of Japan with the Treaty of Shimonoseki in April 1895, following the Qing dynasty's defeat in the First Sino-Japanese War.

The Treaty of Shimonoseki (Japanese: 下関条約, Hepburn: Shimonoseki Jōyaku), also known as the Treaty of Maguan in China or the Treaty of Bakan (馬關條約, Bakan Jōyaku) in Japan, was signed in Shimonoseki, Japan, on April 17, 1895, between the Empire of Japan and the Qing dynasty. The treaty ended the First Sino-Japanese War, in which the Japanese decisively defeated the Chinese land and naval forces. The treaty was signed at the Shunpanrō [ja] hotel by Count Itō Hirobumi and Viscount Mutsu Munemitsu for Japan and Li Hongzhang and his son Li Jingfang on behalf of China.

The peace conference took place from March 20 to April 17, 1895, and the treaty followed and superseded the Sino-Japanese Friendship and Trade Treaty of 1871. It consisted of 11 articles which provided for the termination of China's tributary relations with Korea; required that China pay an indemnity of 200 million taels and cede Taiwan (Formosa), the Penghu (Pescadores) Islands, and the Liaodong Peninsula to Japan; and opened four cities (Shashi, Chongqing, Suzhou, and Hangzhou) to Japan as trading ports. However, due to the diplomatic Triple Intervention of Russia, Germany, and France just one week after the treaty was signed, the Japanese withdrew their claim to the Liaodong Peninsula in return for an additional war indemnity of 30 million taels from China.