An item referred to the magazine R.M. dated November 1936 reporting that the refusal of Russia to supply more details about her naval shipbuilding was a foul of article 18 of the London Naval Treaty. A British source claimed that already 2 cruisers, 6 destroyers and 15 submarines were laid down. (1)
Note
1. The first London Naval Treaty was ratified between United Kingdom, Japan, France, Italy and the USA with as main targets limiting naval shipbuilding and regulating submarine warfare. On 27 October 1930 were the ratifications exchanged by the major naval powers. The second treaty was ratified by the participation nations on 25 March 1936, however the major naval powers Japan and Italy don’t ratify the treaty.
