"Anzio Beachhead," fourteenth in the series of studies of particular combat operations, is the story of how VI Corps of the American Fifth Army seized and held a strategic position far to the rear of the main fighting front, in the Italian campaign of 1944. Since VI Corps included British as well as American units, and the high command in Italy was in British rather than in American hands, the battle to maintain the Anzio beachhead was an Allied rather than an exclusively American operation. Essentially, this narrative of Anzio is confined to the first six weeks of bitter struggle to hold the beachhead against German attacks designed to drive the Allied forces from their foothold, a period which ended on 3 March. Thereafter, until the Allied offensive of May, the Anzio beachhead was a static and relatively quiet front. Then the beachhead forces spearheaded the drive that led to the capture of Rome. Only a sketch of this final and decisive phase of the Anzio operation is included in this narrative.