Were armoured cruisers useful in the Mediterranean?

Were armoured cruisers useful in the Mediterranean during the First World War?

Only in a limited sense; they performed secondary tasks, but their few actions and kills did not justify the type, and none proved decisive.

The armoured cruisers saw real but limited Mediterranean action and made too few kills to vindicate the concept. Their losses were not even higher partly because commanders kept them away from the most dangerous work. Deterrent impact is difficult to measure because historians cannot easily prove which enemy actions never occurred because a ship was present. The overall verdict is that the ships were usable in secondary duties but not decisive in any battle or operation discussed.