Please search the image and resource galleries at the bottom of the page for images, articles, documents and publications detailing the Coast Guard's involvement in World War I
The U. S. Coast Guard & U.S. Lighthouse Service in World War I
Crew of the USCGC TAMPA
April 6th, 2017, marked the 100th anniversary of the Coast Guard’s entry into World War I and the Service’s important role in supporting the war effort. It was on Friday, April 6th, 1917, the day Congress declared war on Germany, that the U.S. Navy’s communications center in Arlington, Virginia, transmitted the code words “Plan One, Acknowledge” to Coast Guard cutters, units and bases initiating the Coast Guard’s transfer from the Treasury Department to the Navy and placing the Service on a wartime footing.
During the war’s nearly nineteen months, the Coast Guard and Lighthouse Service would lose almost two hundred men and five ships. These ships included two combat losses. On August 6th, 1918, U-140 sank the Diamond Shoals Lightship after her crew transmitted to shore the location of the marauding enemy submarine, but no lives were lost. However, on September 26th, 1918, after completing her convoy escort duty from Gibraltar to Milford Haven, England, Cutter Tampa was torpedoed by UB-91. The cutter sank killing all 131 persons on board, including four U.S. Navy men, sixteen Royal Navy personnel and 111 Coast Guard officers and men. It proved America’s greatest World War I naval loss of life due to combat.
Nearly 9,000 Coast Guard men and women would participate in the war. This number included over 200 Coast Guard officers, many of whom served as warship commanders, troop ship captains, training camp commandants and naval air station commanders. In all, Coast Guard heroes received two Distinguished Service Medals, eight Gold Life-Saving Medals, almost a dozen foreign honors and nearly fifty Navy Cross Medals, dozens more than were awarded to Coast Guardsmen in World War II.
Department of Homeland Security World War I Centennial Poster Series
The U.S. Coast Guard during the First World War
Department of Homeland Security and the First World War