Operation Hardtack 3 and 4 was the codename for a British military operation on the French coast near Quinéville, located on the northeastern side of the Cotentin peninsula. History
With a view to a Allied landing in Normandy, small attacks (raids) were conducted at various places along the Normandy coast to gather information. On December 25, 1943, during operation Hardtack 3 and 4, a British command unit had to gather information about the strength of the German garrison and the degree of resistance they would offer. In addition, some German military possessions were blown up.
wiki
