Captain Richard H. Jackson, United States Staff Representative in Paris, to Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters
CABLEGRAM RECEIVED June <9, 1918.> 01109 SFM
Amnavpar, Paris. 2162
CS June 9
C O N F I D E N T I A L
2162. Confidential message from Mac Nally fo r Sims and Pershing for use present offensive quote about half million men contributed by Mackensen. Two British Cruisers sunk at Zeebrugge for blockade purposes have been turned that largest torpedo boats pass without any difficulty. In last British Ostend attack VINDIC
ATIVE was sunk alongside pier and does not affect channel. Germans expect furtherr North Sea port attacks and they are preparing energetically to repel them. Large numbers of submarines <are> said to have been lost during month April. Exact number actually not yet known unquote. Polk unquote. 00309. 2162.
Source Note: Cy, DNA, RG 45, Entry 517B. Identifiers “16/6/1” appear in the upper-right corner with “J/1/2/3/” below in columnar fashion.