It is the right to be able to counterattack by the use of force when a country closely related to your country is attacked by another country. It is regarded as a unique right of each country by the United Nations Charter, and Japan also has. Also, originally collective self-defense rights are not written in English, it is written in Japanese English "Right of Collective Self-Defense".
the United Nations Charter
Convention which established basic points such as the purpose and principle of the United Nations, organization and function, which consists of the preamble made in 1945 and 19 chapter 111, the United Nations was founded.
Japan until now can`t be used under Article 9 of the Constitution.
The Constitution of Japan, Article 9
- Aspiring sincerely to an international peace based on justice and order, the Japanese people forever renounce war as a sovereign right of the nation and the threat or use of force as means of settling international disputes.
- In order to accomplish the aim of the preceding paragraph, land, sea, and air forces, as well as other war potential, will never be maintained. The right of belligerency of the state will not be recognized.
Right of individual self-defense
It is a right granted by the United Nations Charter, the right to exercise force to defend for defense when its own country is attacked by another country, Japan also has it.
Therefore, the Shinzo Abe cabinet decided to change the interpretation of the Constitution and the Cabinet decision so that it can use.
To determine what constitutes the constitution, laws and other important matters of the Cabinet, such as important matters, by each minister.