Executive power is instead wielded by the prime minister and the Cabinet, whose sovereignty is vested in the Japanese people. In 2020, the government of Japan announced a target of carbon-neutrality by 2050. Japan ranks 20th in the 2018 Environmental Performance Index, which measures a country’s commitment to environmental sustainability. Responding to rising concerns, the government introduced environmental protection laws in 1970. Japan has nine forest ecoregions which reflect the climate and geography of the islands.
In 645, the government led by Prince Naka no Ōe and Fujiwara no Kamatari devised and implemented the far-reaching Taika Reforms. Before 日本 was adopted in the early 8th century, the country was known in China as Wa (倭, changed in Japan around 757 to 和) and in Japan by the endonym Yamato. A developed country with one of the world’s largest economies by nominal GDP, it is a global leader in the automotive, electronics, and robotics industries, in addition to making significant contributions to science and technology. Widely considered a great power and the only Asian member of the G7, it maintains one of the world’s strongest militaries but has constitutionally renounced its right to declare war. The country annexed Korea in 1910, invaded China in 1937, and attacked the U.S. and European colonial powers in 1941, thus entering World War II as an Axis power. After rule by the Kamakura and Ashikaga shogunates and a century of warring states, Japan was unified in 1600 by the Tokugawa shogunate, which implemented an isolationist foreign policy.
Statutory law originates in the legislature, and the constitution requires that the emperor promulgate legislation passed by the Diet without giving him the power to oppose legislation. Japan is a unitary state and constitutional monarchy in which the power of the emperor (Tennō) is limited to a ceremonial role. In the period of rapid economic growth after World War II, environmental policies were downplayed by the government and industrial corporations; as a result, environmental pollution was widespread in the 1950s and 1960s.
Law enforcement
The 1920s saw a political shift towards statism, a period of lawlessness following the 1923 Great Tokyo Earthquake, the passing of laws against political dissent, and a series of attempted coups. The early 20th century saw a period of Taishō democracy (1912–1926) overshadowed by increasing expansionism and militarization. The Edo period gave rise to kokugaku (“national studies”), the study of Japan by the Japanese.
The resignation of the shōgun led to the Boshin War and the establishment of a centralized state nominally unified under the emperor (the Meiji Restoration). Modern Japan’s economic growth began in this period, resulting in roads (Kaidō) and water transportation routes, as well as financial instruments such as futures contracts, banking and insurance of the Osaka rice brokers. When open war broke out, Ieyasu defeated rival clans in the Battle of Sekigahara in 1600. Tokugawa Ieyasu served as regent for Hideyoshi’s son Toyotomi Hideyori within the Council of Five Elders and used his position to gain political and military support. During the 16th century, Portuguese traders and Jesuit missionaries reached Japan for the first time, initiating direct commercial and cultural exchange between Japan and the West (see Nanban trade and Nanban art).
The country attracted 36.9 million international tourists in 2024, and was ranked eleventh in the world in 2019 for inbound tourism. Japan’s constitution prohibits racial and religious discrimination, and the country is a signatory to numerous international human rights treaties. It spent 1.4% of its total GDP on its defence budget and maintained the tenth-largest military budget in the world in 2024. The United States is a major market for Japanese exports and a major source of Japanese imports, and is committed to defending the country, with military bases in Japan.
The Ryukyu and Nanpō Islands have a subtropical climate, with warm winters and hot summers. Precipitation is not heavy, but the islands usually develop deep snowbanks in the winter. The northernmost region, Hokkaido, has a humid continental climate with long, cold winters and very warm to cool summers.
Japan
Go-Daigo was defeated by Ashikaga Takauji in 1336, beginning the Muromachi period (1336–1573). After Yoritomo’s death, the Hōjō clan came to power as regents for the shōgun. Japan’s feudal era was characterized by the emergence and dominance of a ruling class of warriors, the samurai.
National Flag and Anthem
The prime minister as the head of government has the power to appoint and dismiss Ministers of State, and is appointed by the emperor after being designated from among the members of the Diet. During the Meiji period (1868–1912), the Empire of Japan emerged as the most developed state in Asia and as an industrialized world power that pursued military conflict to expand its sphere of influence. The succeeding Ashikaga shogunate failed to control the feudal warlords (daimyō) and a civil war began in 1467, opening the century-long Sengoku period (“Warring States”). Super GT is the most popular national racing series in Japan, while Super Formula is the top-level domestic open-wheel series. Karate, which originated in the Ryukyu Kingdom, is popular across the world and has been included in the Olympic Games.
- However, it lacks any laws against discrimination based on race, ethnicity, religion, sexual orientation, or gender identity and does not have a national human rights institution.
- Other minority religions include Hinduism, Judaism, and Baháʼí Faith, as well as the animist beliefs of the Ainu.
- Japan has close economic and military relations with the United States, with which it maintains a security alliance.
- The United States is a major market for Japanese exports and a major source of Japanese imports, and is committed to defending the country, with military bases in Japan.
- Statutory law originates in the legislature, and the constitution requires that the emperor promulgate legislation passed by the Diet without giving him the power to oppose legislation.
- Honshu has the highest population density at 450 persons/km2 (1200/sq mi) as of 2010update, while Hokkaido has the lowest density of 64.5 persons/km2 as of 2016update.
The Jinshin War of 672, a bloody conflict between Prince Ōama and his nephew Prince Ōtomo, became a https://www.richyfox.co.uk/ major catalyst for further administrative reforms. It nationalized all land in Japan, to be distributed equally among cultivators, and ordered the compilation of a household registry as the basis for a new system of taxation. Despite early resistance, Buddhism was promoted by the ruling class, including figures like Prince Shōtoku, and gained widespread acceptance beginning in the Asuka period (592–710). A century later, the Book of Wei records that the kingdom of Yamatai (which may refer to Yamato) unified most of these kingdoms. The Yayoi period saw the introduction of innovative practices including wet-rice farming, a new style of pottery, and metallurgy from China and Korea. Clay vessels from the period are among the oldest surviving examples of pottery.
GDP per capita
- Minority ethnic groups in the country include the indigenous Ainu and Ryukyuan people.
- The Nara period (710–784) marked the emergence of a Japanese state centered on the Imperial Court in Heijō-kyō (modern Nara).
- Few children learn these languages, but local governments have sought to increase awareness of the traditional languages.
- The Japan Aerospace Exploration Agency is Japan’s national space agency; it conducts space, planetary, and aviation research, and leads development of rockets and satellites.
- The Japanese yen is the world’s third-largest reserve currency after the US dollar and the euro.
- In 2018, there were an estimated 105 mosques and 200,000 Muslims in Japan, 43,000 of which were Japanese nationals.
Minority ethnic groups in the country include the indigenous Ainu and Ryukyuan people. Japan is an ethnically and culturally homogeneous society, with the Japanese people forming 97.4% of the country’s population. Japan has a population of over 123 million, of whom nearly 120 million are Japanese nationals (2024 estimates). Since privatization in 1987, dozens of Japanese railway companies compete in regional and local passenger transportation markets; major companies include seven JR enterprises, Kintetsu, Seibu Railway and Keio Corporation. The Japanese agricultural sector accounts for about 1.2% of the country’s total GDP as of 2018update. Japan is widely considered to be a great power due to its economic power and political, cultural, and military influence.
Murasaki Shikibu’s The Tale of Genji and the lyrics of Japan’s national anthem “Kimigayo” were written during this time. This marked the beginning of the Heian period (794–1185), during which a distinctly indigenous Japanese culture emerged. A smallpox epidemic in 735–737 is believed to have killed as much as one-third of Japan’s population. The period is characterized by the appearance of a nascent literary culture with the completion of the Kojiki (712) and Nihon Shoki (720), as well as the development of Buddhist-inspired artwork and architecture.
More recent major quakes are the 1995 Great Hanshin earthquake and the 2011 Tōhoku earthquake, which triggered a large tsunami. Destructive earthquakes, often resulting in tsunami, occur several times each century; the 1923 Tokyo earthquake killed over 140,000 people. As of 2014update, approximately 0.5% of Japan’s total area is reclaimed land (umetatechi). Honshu has the highest population density at 450 persons/km2 (1200/sq mi) as of 2010update, while Hokkaido has the lowest density of 64.5 persons/km2 as of 2016update. The Ryukyu Islands, which include Okinawa, are a chain to the south of Kyushu. In 2011, Japan suffered one of the largest earthquakes in its recorded history—the Tōhoku earthquake—triggering the Fukushima Daiichi nuclear disaster.
With a population of over 123 million as of 2025, it is the world’s 11th most populous country. The Japanese archipelago consists of four major islands alongside 14,121 smaller islands. (The population of Tokyo Metropolitan Area as of June 1, 2021 is 13,999,568, approximately 10% of Japan’s total population.) Japan is the most successful Asian Rugby Union country and hosted the 2019 IRB Rugby World Cup. The country gained the hosting rights for the official Women’s Volleyball World Championship on five occasions, more than any other country.