"Adrias" took part in numerous convoy escorts in the Mediterranean as well as in the Sicily landing operations, where on the night of 20 July 1943, in cooperation with British escort destroyer she successfully confronted 3 German torpedo boats during a night engagement and sunk two of them. On 20 September 1943 "Adrias" represented Greece when a force of four Allied ships accepted the surrender of a contingent of the Italian Royal Navy (out of Taranto) that was sailing towards Malta following the armistice with Italy.