The MISC@1 ORGANIZATION@1 's most successful attack was when divers planted mines on MISC@2 battleships during the Raid on LOCATION@1 -LRB- NUMBER@1 December NUMBER@2 -RRB- .

The MISC@1 ORGANIZATION@1 's most successful attack was when divers planted mines on MISC@2 battleships during the raid on LOCATION@1 harbour -LRB- NUMBER@1 December NUMBER@2 -RRB- .
