 She arrived at St. Thomas, Virgin Islands on 3 August for duty with the French division of the Caribbean Patrol, investigating isolated harbors and inlets in the Caribbean and on the coasts of Venezuela and Colombia to prevent their use by German submarines.On 8 December 1918, she reported to the American Patrol Detachment, Atlantic Fleet, with whom she served along the East Coast until returning to Portsmouth 6 May 1919.She again went out of commission 27 May 1919.