Nuclear Umbrella and Japan

Here is an interesting analysis why a nation went nuclear despite the suggestion from the US and
Soviet Union that she would be safe under nuclear umbrella, citing Charles André Joseph Marie de Gaulle,Baroness Margaret Hilda Thatcher and Chinese government.

1 The nuclear umbrella is unreliable.
If the Soviet Union attacked France/England, the US would not retaliate with a nuclear weapon.


2 A nuclear weapon helps to keep peace.
It prevented the US and Russia from going to a war.

3 A nation without a nuclear weapon has little say in the international community.

4 Nuclear weapon is economical.

photo via 保守思想