Naval History and Heritage Command

Naval History and Heritage Command

Office of the Chief of Naval Operations All Navy War Warning

U. S. NAVAL RADIO SERVICE

RECEIVED OR FILED                           

AT STATION  SAN DOMINGO     BY RADIO         DATE Aug 29,[19]18 Time 10:22 PM

ORIGIN                       Operator Recd,

[Opnav] WASHINGTON                   FR

VIA <To: San Domingo, Radio Station>

GOVT. WAR WARNING:

Enemy submarine may be encountered between latitudes of Cape Race and Charleston, S.C. active east of Nantucket and south of Nova Scotia, south of New Foundland also.1

Ends.              

Source Note: Cy, DNA, RG 45, Entry 517B. The sender is based on the fact that two earlier messages that were nearly identical originated from the Office of the Chief of Naval Operations (Opnav). See: Office of the Chief of Naval Operations All Navy War Warning, August 6 and August 13, 1918. There is a distribution list below close: “Copy TO BRIGADE, KWASIND, INTELLIGENCE OFFICER.”

Footnote 1: The submarines U-140, U-156 and U-117 had been active in American waters during August though by this time all three had begun their journeys homeward. Clark, When U-Boats Came to America: 230-31, 241, 247.

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