British Intelligence and the 1916 Mediation Mission of Colonel Edward M. House

Colonel Edward M. House, the close personal confidant of American President Woodrow Wilson, disembarked in Great Britain in January 1916 on a mission to bring the First World War to a close under the auspices of American mediation. Although his mission, which culminated in a secret pact between the United States and Great Britain known as the House-Grey Memorandum, has been studied by several scholars, the involvement of British intelligence with respect to that mission has never received more than cursory attention. Through a careful analysis of the surviving documents, this article reconstructs British intelligence's activities with respect to House's mission, examines the countermeasures that House employed as he attempted to protect the secrecy of his negotiations, delineates the role played by different British intelligence agencies and assesses their response to their findings.