CHAPTER II. RENUNCIATION OF WAR
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.
The Japs for-go war after there WW2 as kicking. This was part of the Peace Treaty between the U.S. and Japan.
Japan is allowed to have enough troops to defend its borders long enough for the U.S. to arrive to protect them. There Defense troops are a mirror of our National Guard.
I suppose. But Japan has about 250,000 active troops, which ranks them 24th in the world. They also have huge arsenal of war planes and ships to use. Currently, it is unlikely that Japan would ever use these in an offensive war, but if the world was to explode into world war, I don't see why they wouldn't get involved... even if it's against their constitution.
After all, they have deployed troops to Iraq, which many people complained was a violation of their constitution.