1.   Both, however, were under external threat from barbarians more or less thinly disguised.

2.   But external threats can make for improbable subdivision bedfellows.

3.   Numerous nations have not only experienced external threats, but have been torn apart by internal struggle as well.

4.   But external threats, barely mentioned in the speech, could intrude down the road.

5.   But with the collapse of the Cold War system, they do not perceive an external threat.

6.   Could it be that internal threats of survival in office have so weakened presidential resolve that he can no longer make good on this external threat?

7.   External threats to any country tend to crystallize the collective identity and encourage citizens to distinguish themselves from the enemy.

8.   For nowadays the main point of foreign policy ought not to be the elimination of immediate external threats, but the avoidance of future ones.

9.   He said external threats such as terrorism are far more frightening than those in which the person has a sense of control, such as driving.

10.   He was heading a country about to face the greatest external threat in its history.