1942
The attack on Pearl Harbor and full U.S. participation in World War II enlarged the scope of her actions. On 7 April 1942 Livermore departed New York for the first of many transatlantic escort missions. Completing her second voyage to Greenock, Scotland, 27 June, she began coastal patrol and convoy duty southward into the Caribbean.
Livermore arrived off Mehdia, French Morocco, 9 November for the north African invasion and was assigned antisubmarine, antiaircraft, and fire support duties. Five days later, the invasion force successfully established ashore, she sailed for Norfolk, arriving 26 November.
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