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Office of the Chief of Naval Operations to All United States Naval Forces



                      Or U.S.S. PENNSYLVANIA   Date 6/21/18.

Origin                   Operator

Washington                  CO

Via  Washington Broadcast

GOVT.     To all ships and stations.

War Warning.

Enemy submarine may be encountered west of longitude sixty and anywhere between latitudes of Nantucket and Bermuda on June fourteenth five p.m. ship sunk 38º 00’ 71º 00’ northwest on June eighteenth 1:45 P.M. report considered reliable enemy submarine 37º 42’ 61º 19’ northwest on June nineteenth nine P.M. enemy submarine 38º 34 71º 53’ northwest ends.

Time 7:0 & P.M.1                       <opnav.>

Source Note: Cy, DNA, RG 45, Entry 517B. Identifier in upper-left corner: “MEJ.”

Footnote 1: For more on issuing war warnings of submarines near the U.S., see: Warning to All Ships and Stations, 3 June 1918; and William S. Benson to William S. Sims, 3 June 1918.