An estimated 4,000 people died when the Clyde-built liner the Lancastria sank during World War II.
About 400 Scots were among the death toll, which was higher than that of the Titanic and Lusitania combined.
The Scottish Government confirmed a commemorative medal was to be struck for those caught up in the disaster.
The Lancastria was lending support to the war effort when it was attacked by German bombers on 17 June, 1940.
The ship had been evacuating British Expeditionary Forces from France.