Prime Minister of Japan in the context of "Yasuo Fukuda"

The Government of Japan is the central government of Japan. It consists of legislative, executive and judiciary branches and functions under the framework established by the Constitution of Japan. Japan is a unitary state, containing forty-seven administrative divisions, with the emperor as its head of state. His role is ceremonial and he has no powers related to the Government. Instead, it is the Cabinet, comprising the prime minister and the ministers of state, that directs and controls the government and the civil service. The Cabinet has the executive power and is formed by the prime minister, who is the head of government. The Prime Minister is nominated by the National Diet and appointed to office by the Emperor. The current cabinet is the Takaichi Cabinet, which is led by prime minister Sanae Takaichi, who assumed office on 21 October 2025. The country has had a Liberal Democratic minority government since 2025.

The National Diet is the legislature, the organ of the Legislative branch. The Diet is bicameral, consisting of two houses with the House of Councilors being the upper house, and the House of Representatives being the lower house. The members of both houses of the Diet are directly elected by the people, who are the source of sovereignty. The Diet is defined as the supreme organ of sovereignty in the Constitution. The Supreme Court and other lower courts make up the Judicial branch and have all the judicial powers in the state. The Supreme Court has ultimate judicial authority to interpret the constitution and the power of judicial review. The judicial branch is independent from the executive and the legislative branches. Judges are nominated or appointed by the Cabinet and never removed by the executive or the legislature except during impeachment.

The Axis powers, originally called the Rome–Berlin Axis and also Rome–Berlin–Tokyo Axis, was the military coalition which initiated World War II and fought against the Allies. Its principal members were Nazi Germany, the Kingdom of Italy and the Empire of Japan. The Axis were united in their far-right positions and general opposition to the Allies, but otherwise lacked comparable coordination and ideological cohesion.

The Axis grew out of successive diplomatic efforts by Germany, Italy, and Japan to secure their own specific expansionist interests in the mid-1930s. The first step was the protocol signed by Germany and Italy in October 1936, after which Italian leader Benito Mussolini declared that all other European countries would thereafter rotate on the Rome–Berlin axis, thus creating the term "Axis". The following November saw the ratification of the Anti-Comintern Pact, an anti-communist treaty between Germany and Japan; Italy joined the Pact in 1937, followed by Hungary and Spain in 1939. The "Rome–Berlin Axis" became a military alliance in 1939 under the so-called "Pact of Steel", with the Tripartite Pact of 1940 formally integrating the military aims of Germany, Italy, Japan, and later followed by other nations. The three pacts formed the foundation of the Axis alliance.

The Cabinet of Japan (内閣, Naikaku; Japanese pronunciation: [naꜜi.ka.kɯ]) is the chief executive body of the government of Japan. It consists of the prime minister, who is appointed by the Emperor after being nominated by the National Diet, in addition to up to nineteen other members, called ministers of state. The current cabinet, the Takaichi Cabinet, was formed on 21 October 2025 and is led by Prime Minister Sanae Takaichi. The country has had a Liberal Democratic minority government since 2025.

The prime minister is nominated by the National Diet, while the remaining ministers are appointed and dismissed by the prime minister. The Cabinet is collectively responsible to the National Diet and must resign if a motion of no confidence is adopted by the National Diet.

The National Diet (国会, Kokkai; Japanese pronunciation: [kok̚.kai]) is the national legislature of Japan. It is composed of a lower house, called the House of Representatives (衆議院, Shūgiin), and an upper house, the House of Councillors (参議院, Sangiin). Both houses are directly elected under a parallel voting system. In addition to passing laws, the Diet is formally responsible for nominating the prime minister. The Diet was first established as the Imperial Diet in 1890 under the Meiji Constitution, and took its current form in 1947 upon the adoption of the post-war constitution. Both houses meet in the National Diet Building (国会議事堂, Kokkai-gijidō) in Nagatachō, Chiyoda, Tokyo.

The Imperial Investiture (親任式, Shinninshiki) is an official inauguration ceremony whereby the Emperor of Japan formally appoints the Prime Minister of Japan or the Chief Justice of Japan to office. In practice, the Prime Minister is nominated by the Diet, while the Chief Justice is nominated by the Cabinet. The Emperor is constitutionally required to appoint the nominated person, without the right to decline appointment.

During the time period of the Empire of Japan, as the Emperor was the source of executive authority, there were also investitures held for military officials. Such appointees were called the Shinninkan (親任官).

The Takaichi Cabinet is the 104th Cabinet of Japan, formed on 21 October 2025 when Sanae Takaichi was appointed Prime Minister by Emperor Naruhito as designated by the National Diet, following the resignation of Shigeru Ishiba after the 2025 Liberal Democratic Party presidential election.

The country's first woman-led government, it is also the first time that the Japan Innovation Party will participate in the national government, following the collapse of the LDP–Komeito coalition, which had governed from 1999 to 2009 and from 2012 to 2025, and the formation of the LDP–JIP coalition.

Sanae Takaichi (born 7 March 1961) is a Japanese politician who is serving as Prime Minister of Japan and President of the Liberal Democratic Party since 2025. She is the first woman to hold either of these positions. A member of the House of Representatives from 1993 to 2003 and since 2005, she also held several ministerial posts during the premierships of Shinzo Abe and Fumio Kishida.

Born and raised in Nara Prefecture, Takaichi graduated from Kobe University and worked as an author, legislative aide, and broadcaster before beginning her political career. Elected as an independent to the House of Representatives in the 1993 general election, she joined the Liberal Democratic Party (LDP) in 1996. A protégé of Prime Minister Abe, she held various positions during Abe's premiership, most notably as Minister for Internal Affairs and Communications. She was a candidate in the 2021 LDP leadership election, but was eliminated before the runoff, placing third. From 2022 to 2024, during Fumio Kishida's premiership, she served as the Minister of State for Economic Security.

The Liberal Democratic Party (LDP; Japanese: 自由民主党, romanized: Jiyū-Minshutō), also known as Jimintō (自民党), is a major conservative and nationalist political party in Japan. Since its foundation in 1955, the LDP has been in power almost continuously—a period called the 1955 System—except from 1993 to 1996, and again from 2009 to 2012.

The LDP was formed in 1955 as a merger of two conservative parties, the Liberal Party and the Japan Democratic Party, and was initially led by prime minister Ichirō Hatoyama. The LDP supported Japan's alliance with the United States and fostered close links between Japanese business and government, playing a major role in the country's economic miracle from the 1960s to early 1970s and subsequent stability under prime ministers including Hayato Ikeda, Eisaku Satō, Kakuei Tanaka, Takeo Fukuda, and Yasuhiro Nakasone. Scandals and economic difficulties led to the LDP losing power in 1993 and 1994, and governing under a non-LDP prime minister from 1994 before regaining power in 1996. In 1999, the LDP entered into a coalition with Komeito.

The Constitution of the Empire of Japan (Kyūjitai: 大日本帝國憲法; Shinjitai: 大日本帝国憲法, romanized: Dai-Nippon Teikoku Kenpō), known informally as the Meiji Constitution (明治憲法, Meiji Kenpō), was the constitution of the Empire of Japan which was proclaimed on February 11, 1889, and remained in force between November 29, 1890, until May 2, 1947. Enacted after the Meiji Restoration in 1868, it provided for a form of mixed constitutional and absolute monarchy, based jointly on the German and British models. In theory, the Emperor of Japan governed the empire with the advice of his ministers; in practice, the Emperor was head of state but the Prime Minister was the actual head of government. Under the Meiji Constitution, the Prime Minister and his Cabinet were not necessarily chosen from the elected members of parliament.

During the Allied occupation of Japan, the Meiji Constitution was replaced with the "Postwar Constitution" on November 3, 1946; the latter document has been in force since May 3, 1947. In order to maintain legal continuity, the Postwar Constitution was enacted as an amendment to the Meiji Constitution.