Evidently the Prastorian invasion had forced him to retreat.

The Viking invasion forced the dialect to split in two.

He continued to do so until 1941, when the imminent German invasion of France forced the family to move again as refugees.

In 1796 Napoleon's invasion of Milan forced the family to flee the French forces.

The invasion would have forced them, among other things, to adopt as part of their tactics the use, of camels with great dexterity.

This invasion forced all of the future heroes to band together.

However, an invasion by an unknown alien race forced the colonies to unify under Earth's leadership.

In March 1921, the Soviet invasion of Georgia forced him into exile.

The Iraqi invasion of Kuwait has forced the two countries to define their relationship once and for all.

This building program was only in its initial stages by the time the German invasion forced its suspension in 1941.