3000 miles, boarding 342 vessels, having given medical aid to 19 individuals, of whom three were fishermen. U.S. Navy and World War I On 6 April 1917 the United States declared war on the "Imperial German Government" and the Coast Guard was placed under the jurisdiction of the U.S. Navy for the duration of the war by executive order signed by President Woodrow Wilson.Johnson, p 43 Duties for Unalga did not change under Navy control initially and she left for her usual summer patrol work in Alaskan waters on 4 May. At the end of the summer cruise, she was assigned submarine tender duties with the Twelfth Naval District and home-ported at San Pedro, California, arriving 17 October. On 6 May 1918 she left Seattle for her usual Alaska patrol work, but in late May the captain was notified by radio to report to Unalaska to assist with an influenza epidemic. The crew tended eighty sick persons, distributed food, made coffins and buried the dead. In mid-June Unalga steamed to Bristol Bay and up the Nushagak River to Dillingham, Alaska providing medical services to the ill and burial details for the dead. By the end of June the epidemic had abated and Unalga resumed patrol work in the Gulf of Alaska. She returned to San Pedro and submarine tender duties on 17 October 1918. On 11 November 1918 the armistice ending World War I was concluded but Navy control of the Coast Guard did not end until 28 August 1919 when President Wilson signed an order returning the Coast Guard to Treasury Department control.Kroll, p 130 Return to the Coast Guard Patrol work in AlaskaUnalga's schedule of summers in Alaska and winter assignments with the Northern Division continued unchanged after the Treasury Department resumed control of the Coast Guard. Duties performed included search and rescue, fisheries patrols, treaty enforcement, delivery of supplies and mail to remote areas, transport of officials and prisoners, medical care, and law enforcement. A portion of each winter in the years 1922 to 1926 was spent on maintenance availabilities and repair work to the cutter. In February 1927, Unalga arrived at Winslow, Washington for a six-week overhaul, leaving 15 April for regular patrol duties in Alaska. On 4 November 1927, she collided with the 15 gross register ton motor vessel Eurus in Dixon Harbor in Southeast Alaska where she had towed Eurus after Eurus′s engine broke