Russian Black Sea Fleet prepared for war according to a letter of the German naval attaché at Istanbul dated 26 September 1939

In his letter dated Istanbul, Turkey 29 September 1939 No. 61g.Kdos reported the German naval attaché to the Oberkommando der Kriegsmarine at Berlin that the Russian Black Sea Fleet was prepared for war had the mobilisation replenishments of personnel and ammunition taken on board.

Source

Bundesarchiv. German Marineattaché for Turkey, Greece, Romania and Bulgaria 1939-1941. RM 12-II/459.