Question

The greatest fear of the rulers of the Austria-Hungarian Empire were?

Answer 1

In general, the greatest fear of the rulers of the Austria-Hungarian Empire was that foreign invasion would lead to overthrow, since they were surrounded by enemies. 

Answer 2

The greatest fear of the rulers of the Austria-Hungarian Empire was that their empire would be destroyed by the nationalist forces.

Explanation.

Austria-Hungary Empire was a state in Central Europe between 1867 to 1918.it was ruled by a single monarch.The Empire was broken into smaller nations after world war one.Those who spoken in German language became Austria.

Nationalism in Austria-Hungary led to unification.