"Haraden" was assigned to U.S. Naval Forces in European Waters; after calling at Newport, Rhode Island for supplies she departed New York 30 June 1919 for duty in the Adriatic Sea. She arrived at Split, (then Kingdom of Serbs, Croats and Slovenes, now Croatia), on 28 July 1919 and conducted operations from that port assisting the naval force in the execution of the terms of the Austrian armistice, serving as station ship at Trieste and Rijeka, and participating in maneuvers. This duty occupied her until 23 October 1919, when she departed for Norfolk, Virginia, arriving on 18 November.