| Using two barges, The Wimbrown VII and the Hercules as their operating Bases, SEALs patrolled the sea searching for minelayers thought to be illegally mining the local waters. |
| The minelayers were preceded by Royal Navy destroyers sweeping for enemy mines and submarines. |
| Except for furtive movements by individual submarines and minelayers, not a dog stirred from August till November. |
| The ability of submarines to approach enemy harbours covertly led to their use as minelayers. |
