What counts as unrestricted mine warfare, and does it include free-floating mines?
Short answerThe definition includes mining wherever an enemy is expected and using free-floating mines, even though those mines can return to threaten their own side.
NotesUnrestricted mine warfare means placing mines wherever the enemy is expected, including international or neutral waters, with little concern for what else they might hit. The definition includes free-floating mines. Their movement makes them especially hazardous to the force that laid them, since they can drift back into its own shipping.