This applies only if you have at least one warship in the Adriatic Sea.
1) Standard rules: If you pick any Allied warships during this Incident phase in the Adriatic Sea (for any German force), then return those warships to the Pool without engaging in combat; do not pick substitutes.
2) Optional rules: Roll one die and pick at random that number of Austro-Hungarian warships. Place them in Pola. They are controlled by the Germans. Then raise the Allied Alert level by one. See the Austro-Hungarian Units rule (20.0).