Once our common threat is gone, the Nyazen are certain to turn on us.

Now, allied by a common threat, they came together once more to protect their own.

In such difficult times democratic nations faced with common threats to their national security must stand together.

The two heads disagree constantly, but will work together when there is a common threat.

The crisis, therefore, has helped to bring the global players together in the face of a common threat.

This was a common threat to children of that era growing up in the area.

Until only a few years ago this species was thought to be extinct due to three common threats.

However, Jefferson did believe that nations could work together when faced with common threats.

Why should we have two different standards for a common threat to the safety of America and our children?

Nothing like a common threat, he thought, to pull a crew together.