Japan is showing a sign of claiming the right to collective self-defence in the wake of its call for nuclear weaponization.

There are evident moves of Japan to emerge a military giant with its way being paved for mounting a preemptive attack on other countries.

A committee under the prime minister which has studied a medium-and long-term prospect presented a report calling for the approval of the exercise of the right to collective self-defence.

The right to collective self-defence means the right to counter an invasion of an ally by other country, considering it as aggression against Japan. This means an action is not confined to the defence of its country but allows intervention in international dispute and even preemptive attack on others in some cases.

Since its defeat in World War II, Japan has kept the "Self-Defence Forces" as a conception of passive defence of the homeland, subject to the Constitution that prohibits the possession of an army.

The right to collective self-defence may make a fundamental switchover.

The biggest opposition Liberal Democratic Party has already committed itself to claiming not only the right to collective self-defence but replacing the "SDF" by "National Defence Forces."

The ruling Democratic Party is likely to stage a conservative campaign with the approach of the general election and support for the right to collective self-defence is strong in the political camp of Japan including Prime Minister Noda.

What is noteworthy is the U.S. friendly approach toward this issue within the framework of the U.S.-Japan military cooperation.

Japan has been persistent in its moves to become a military giant ranging from the permission of arms export, argument about nuclear weaponization, promotion of the conclusion of the General Security of Military Information Agreement to the right to collective self-defence.