defense ****
defence
defensive measure

It was a defensive measure against these kinds of attacks.

But it would be national suicide not to study defensive measures.

The king did so as a defensive measure in the event of a war with Sweden.

There were, quite simply, no defensive measures it could employ up here.

We will take defensive measures against terrorism to protect Americans.

It can also release the energy from a point on its head as a defensive measure.

"You don't call what they did to us a defensive measure?"

It was clear that we should have to take new defensive measures.

But if it was a defensive measure, how did they ever see us from the ground?

And don't cut back on any of the defensive measures.