Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters, to Office of Naval Intelligence
File No <16-4-22>
Cablegram Sent 31 July 1918. RES
To: Opnav Washington (Navintel) Serial No.
Prep. by M-1 SX D.R.
2140. 8238. Have investigated Admiralty and elsewhere and formed the opinion that it would be perfectly safe to assume that enemy submarines are not receiving oil or other supplies from Spain. 2140 22131
Source Note: CCy, DNA, RG45, Entry 517B.