Austro-Italian War (1859).
Defence of Venice by Von Ebner.—During this brief struggle, defensive torpedo operations were carried out under the direction of Colonel Von Ebner, of the Imperial Austrian Engineers.
The harbour of Venice was protected by a most elaborate system of submarine mines, devised by the above-named officer. Though the importance of his system was proved by the fact of no attempt being made on Venice, yet no opportunity was afforded of practically testing its efficiency.