United States Lines - Comfort, Courtesy, Safety, Speed
The Emergence of Modern America (1890-1930)
A National Archives Foundation educational resource using primary sources from the National Archives

View the full document here: https://docsteach.org/document/german-submarine-ub-class-rough-seas/
During World War I, German submarines, or U-boats, patrolled the North Sea, the English Channel, the Irish Sea, and their approaches. U-boats, such as the one pictured here, attacked merchant ships and convoys.
This primary source comes from the Records of the Bureau of Ships.
National Archives Identifier: 594948
Full Citation: 19-N-10586; Photograph of German Submarine of the UB Class in Rough Seas; ca. 1919; Naval History Photographs, 1883–1941; Records of the Bureau of Ships, Record Group 19; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/document/german-submarine-ub-class-rough-seas/, March 30, 2026]
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