The decoration was awarded to members of the Merchant Marine who served on a ship when it was attacked or damaged by an enemy or an instrument of war, such as a mine during the Second World War. This award is a ribbon bar only. Further prescribed is the issuance of a silver star to be attached to such a bar to seamen who are forced to abandon ship when it is so attacked or damaged. For each additional abandonment, an additional star is attached. It is no longer awarded.