 Complete the following phrase:  Massively outnumbered by the Black Sea Fleet, the Romanian ships were kept behind the minefields defending Constanța for the next several months, training for convoy escort operations. Beginning on 5 October, the Romanians began laying minefields to defend the route between the Bosphorus and Constanța. The minelayers were protected by the destroyers; the submarine fired two torpedoes at Regina Maria that same day, but missed. After the 