 After the armistice of 11 November 1918 brought World War I to an end, "Itasca" returned to the United States Coast Guard Academy – as the Revenue Cutter Service School of Instruction had been renamed after the 1915 creation of the Coast Guard – at New London as a training vessel, but a shortage of personnel prevented her from being manned.Her last training cruise was completed during the summer of 1920, arriving in New London on 3 October 1920.The Coast Guard acquired a replacement training vessel, the former barkentine-rigged gunboat , from the U.S. Navy on 1 July 1921 and renamed her USCGC "Alexander Hamilton" on 18 August 1922.