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.
Japan is in the top three globally for both automobile production and export, and is home to Toyota, the world’s largest automobile company by production. The country’s manufacturing output is the fourth highest in the world as of 2023update. Japan maintains one of the world’s largest fishing fleets and accounts for nearly 15% of the global catch, prompting critiques that Japan’s fishing is leading to depletion in fish stocks such as tuna. Japan has a large cooperative sector, with three of the world’s ten largest cooperatives, including the largest consumer cooperative and the largest agricultural cooperative as of 2018update. In 2024, Japan was the world’s eight-largest exporter and sixth-largest importer. The Japanese yen is the world’s third-largest reserve currency after the US dollar and the euro.
Because of its far-flung outlying islands, Japan’s exclusive economic zone is the eighth-largest in the world, covering 4,470,000 km2 (1,730,000 sq mi). The country’s five main islands, from north to south, are Hokkaido, Honshu, Shikoku, Kyushu and Okinawa. The Allies convened the International Military Tribunal for the Far East to prosecute Japanese leaders except the Emperor for Japanese war crimes. In 1931, Japan invaded China and occupied Manchuria, which led to the establishment of puppet state of Manchukuo in 1932; following international condemnation of the occupation, it resigned from the League of Nations in 1933.
Beginning in 2000, Japan implemented the Happy Monday System, which moved a number of national holidays to Monday in order to obtain a long weekend. Japanese animated films and television series, known as anime, were largely influenced by Japanese manga and have become highly popular globally. Many Japanese media franchises have gained considerable global popularity and are among the world’s highest-grossing media franchises. Popular music in post-war Japan has been heavily influenced by American and European trends, which has led to the evolution of J-pop.
By 2015, Japan had become the world’s fourth-largest PC game market by revenue, behind China, the United States, and South Korea. However, Japan’s video game sector remains a major industry; in 2014, Japan’s consumer video game market grossed $9.6 billion, with $5.8 billion coming from mobile gaming. The Japanese shipbuilding industry faces increasing competition from its East Asian neighbors, South Korea and China; a 2020 government initiative identified this sector as a target for increasing exports.
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 https://www.richyfox.co.uk/ source of Japanese imports, and is committed to defending the country, with military bases in Japan.
The country’s military, the Japan Self-Defense Forces (JSDF), is restricted by Article 9 of the Japanese Constitution, which renounces Japan’s right to declare war or use military force in international disputes. From the 12th century, actual power was held by military aristocrats known as shōgun and feudal lords called daimyō, enforced by warrior nobility named samurai. English has taken a major role in Japan as a business and international link language, and is a compulsory subject at the junior and senior high school levels.
The Nara period (710–784) marked the emergence of a Japanese state centered on the Imperial Court in Heijō-kyō (modern Nara). These legal reforms created the ritsuryō state, a system of Chinese-style centralized government that remained in place for half a millennium. These reforms culminated with the promulgation of the Taihō Code, which consolidated existing statutes and established the structure of the central and subordinate local governments.
Payment for personal medical services is offered through a universal health insurance system that provides relative equality of access, with fees set by a government committee. The Programme for International Student Assessment (PISA) coordinated by the OECD ranks the knowledge and skills of Japanese 15-year-olds as the third best in the world. Other minority religions include Hinduism, Judaism, and Baháʼí Faith, as well as the animist beliefs of the Ainu. In 2018, there were an estimated 105 mosques and 200,000 Muslims in Japan, 43,000 of which were Japanese nationals. Immigration and birth incentives are sometimes suggested as a solution to provide younger workers to support the nation’s aging population. The changes in demographic structure have created several social issues, particularly a decline in the workforce population and an increase in the cost of social security benefits.
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.
The Jinshin War of 672, a bloody conflict between Prince Ōama and his nephew Prince Ōtomo, became a 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.
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.
Japan has close economic and military relations with the United States, with which it maintains a security alliance. It is the world’s fifth-largest donor of official development assistance, donating US$9.2 billion in 2014. Since the late 19th century, the judicial system has been largely based on the civil law of Europe, notably Germany. Historically influenced by Chinese law, the Japanese legal system developed independently during the Edo period through texts such as Kujikata Osadamegaki. It consists of a lower House of Representatives with 465 seats, elected by popular vote every four years or when dissolved, and an upper House of Councillors with 248 seats, whose popularly-elected members serve six-year terms.
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.