Invasion Warning Sub-Committee is convened

This is an inter-service body, under a naval chairman, and holds its first meeting in the Admiralty. The committee is one of several intelligence agencies and will scrutinise all evidence available in London which might seem to have a bearing on the enemy's intentions. It was one of several intelligence agencies that advised the Chiefs of Staff via daily direct reports.

Invasion Warning Sub-Committee report on ship build up

Photos of Kiel and Emden show 40-50 merchant ships at Kiel and 350 large motor launches at Emden.

The committee agrees that this was a "new and unusual feature". Both concentrations might have significance; but the merchant ships at Kiel were possibly held up there by "suspected mining or other temporary restrictions", while the 350 possible invasion-craft at Emden "some simple explanation in connection with canal or other water traffic may be the reason.

Invasion Warning Sub-Committee report on increases in barges

  • Ostend (50 since 31 August)
  • Terneuzen (140 since 16 August)
  • South end of the Beveland Canal (90 since 1 September)

Ghent is important for (a) iron and steel; (b) textiles; (c) oil fuel storage. Probably barges are going south … to fetch these valuable products. … But movements preliminary to invasion are not impossible. The increase in barges at Ostend is abnormal, but might be accounted for by the removal of obstructions in the canal system.

Invasion Warning Sub-Committee report on photos of Sticknehorn rafts at Cuxhaven

There is little evidence other than the movement of small craft towards the Channel ports to show that preparations for invasion of the U.K. are more advanced than they have been for some time. … If there is an intention to invade the expedition is [probably] being held in readiness in the Baltic or Hamburg.