"Calvert" began the consistently superior service which was to win her a Navy Unit Commendation when she sailed from Norfolk, Virginia on 25 October 1942 for the invasion of North Africa. She landed her troops at Safi, French Morocco, on 8 November, and six days later sailed for Norfolk to train troops in Chesapeake Bay for other invasions. On 8 June 1943 she departed for the Mediterranean and her second major assault landing, the invasion of Sicily. She put her troops ashore at Scoglitti, Sicily, on 12 July.