With the B-2, the wing can bring massive firepower to bear, in a short time, anywhere on the globe through previously impenetrable defenses.

In this persona, Lennon found the most impenetrable defense of all, one that legitimized his tyrannical will: fame.

The only way he can bypass this impenetrable defense is to use a human brain against it.

It was an almost impenetrable emotional defense she had developed in the course of her years as an institutionalized orphan.

This time I improved faster, though, because I decided my whole use of any blade was to weave an impenetrable defense.

It would score goals and play impenetrable defense, and as the players confidently predicted, easily defeat Jamaica.

Her versatile offense and her impenetrable defense is a powerful combination.

But often forgotten in the Lakers' run this season is their impenetrable defense.

Letting her use herself up against my impenetrable defense.

A rare stretch of clear weather, about to end, presents an opportunity to complete the operation before the Luftwaffe can mount an impenetrable defense.