Destroyers Prepare To Sail For Mediterranean ***** Patrol: The destroyers "Boadicea" and "Boreas" at Portsmouth as they were prepared to Depth charges can be seen on the decks. The "Boadicea" and "Boreas", destroyers, are being prepared at Portsmouth to sail to-morrow (Thursday) for the Mediterranean to join the British and French fleets in the patrol duties authorised by the Nyon piracy pact. Most significant feature is the preparation of the destroyers torpedees and depth charges, for the patrolling ships have been authorised to sink pirate submarines at sight. September 15, 1937. (Photo by Planet News).