U.K. Invasion: Action Designed to Disconcert the Enemy in Relation To: Memo. By Inter-Services Security Board Covering Suggested Statement in House of Commons

may to assisting the United Kingdom by taking under its protection a neutral country bordering on the United Kingdom, without involving the U.S.A. in hostilities unless Germany attacks this neutral. Again, in due course, the rumour should be officially and strenuously denied. (c) Russian Intervention. While the Board is unaware of the terms of reference to Sir Stafford Cripps, and cannot therefore judge as to the advisability of the present proposal, they regard a threat of Russian intervention at a time when Germany is involved in a large-scale attack on this country as being the means most likely to deter Germany from attempting invasion of the United Kingdom.