These institutions provide no security for any country in case of an attack on it.

They were allies to each other in case of attack from out side.

His gun was ready for action in case of sudden attack.

When the President added the words "except in case of attack", they accepted the change.

In case of attack they didn't want to be unprepared.

In case of attack, I would hide under my desk.

The location made the center more secure in case of an attack.

They are there to protect Alpha in case of an attack.

Something to distract us, just in case of an attack.

But there must be a guard at this spot, night and day, to watch the river in case of an attack.