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Government of Japan

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Japan is a country with a very organized system of government. This system works using a framework called the Constitution of Japan. The government is split into three main branches to keep things balanced. These branches are the legislative, the executive, and the judiciary.

Politics Under Constitution of Japan 04
Politics Under Constitution of Japan 04

The legislative branch makes the laws for the country. The executive branch carries out those laws. The judicial branch makes sure the laws are followed fairly. This structure helps the nation run smoothly every day.

One part of the government is the National Diet. This is the legislative branch, which is where laws are made. The Diet is bicameral, meaning it has two separate houses. The first is the House of Representatives, which is the lower house. The second is the House of Councillors, which is the upper house.

Diet of Japan Kokkai 2009
Diet of Japan Kokkai 2009

People in Japan elect the members of both houses directly. Because the people vote for them, they are the source of power. The Diet is known as the supreme organ of sovereignty.

The executive branch is led by the Prime Minister. This leader heads the Cabinet, which is a group of ministers.

Naikakufu1
Naikakufu1

The National Diet chooses the Prime Minister for this role. Once chosen, the Emperor formally appoints them to office. The current leader is Sanae Takaichi, who took office on 21 October 2025. She leads the Takaichi Cabinet. The Cabinet is responsible for directing the government and the civil service. This group holds the executive power for the whole state.

The third branch is the judicial branch, which includes the Supreme Court.

Saikosaibansho
Saikosaibansho

This branch has the power to interpret the Constitution. It is independent from the other two branches of government. This means the executive and legislative branches cannot tell the judges what to do. The Cabinet can nominate judges, but they cannot remove them easily. They can only be removed through a process called impeachment. This independence ensures that the law remains fair for everyone.

Japan's way of ruling has changed a lot over many years. Long ago, military leaders called shōgun held the real power. They ruled in the name of the Emperor, who was mostly ceremonial.

Japan admin levels
Japan admin levels

In 1889, the Meiji Constitution was adopted to modernize the nation. This created the first parliamentary system in Asia. After World War II, Japan adopted its current Constitution. This changed the country into a liberal democracy. Today, most of the government buildings are located in the capital city, Tokyo.

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🖼️ Images & Media (13)
File:20101129gikai1.jpg
20101129gikai1.jpg
File:Gosichigirimon.svg
Gosichigirimon.svg
File:Naikakufu1.jpg
Naikakufu1.jpg
File:Government Office Complex 2 of Japan 2009.jpg
Government Office Complex 2 of Japan 2009.jpg
File:Monbusho1.jpg
Monbusho1.jpg
File:Politics Under Constitution of Japan 04.svg
Politics Under Constitution of Japan 04.svg
File:Diet of Japan Kokkai 2009.jpg
Diet of Japan Kokkai 2009.jpg
File:Chamber of the House of Representatives of Japan.jpg
Chamber of the House of Representatives...
File:Japanese diet inside.jpg
Japanese diet inside.jpg
File:Supreme Court of Japan 2010.jpg
Supreme Court of Japan 2010.jpg
File:Tokyo High Court Building02bs3200.jpg
Tokyo High Court Building02bs3200.jpg
File:Saikosaibansho.jpg
Saikosaibansho.jpg

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