 Beginning 8 September, she took part in the main sweeps off Salerno and remained off that beachhead on patrol for thirty days.The next operation consisted of sweeps for the establishment of the Anzio beachhead, 21 to 24 January 1944, where "Prevail" was subjected to intense air attack and was damaged by a near bomb miss which forced her to proceed to Palermo and Oran for repairs.In April 1944, "Prevail" resumed operations off Anzio and Naples.