Provide a nuclear umbrella to the world against the threats of other nuclear powers.

Yet, they just voted to extend America's nuclear umbrella over it.

So what this nuclear umbrella is intended for?

Many of them are enjoying the shade provided by somebody else's nuclear umbrella.

In this scenario the American nuclear umbrella was both necessary and sufficient.

The benefits of the American nuclear umbrella are less obvious without a real and present Soviet threat.

Most of them, however, like our allies and other countries whose security ultimately depends on the American nuclear umbrella, are simply troubled.

We have all been dreaming of our glorious history, while huddling under the American nuclear umbrella.

In any case, they note, Japan falls under the American nuclear umbrella.

She remained dedicated to the American nuclear umbrella over the west.