large numbers of American soldiers, so he asked Eisenhower to provide him with an American aide-de-camp. Eisenhower sent him two to choose from: Captains J. R. (Ray) BonDurant and Edwin (Bill) Carver. Montgomery chose BonDurant and with Eisenhower's permission also kept Carver, who became an aide to de Guingand. The American aides accompanied them on visits to American units. A Tac HQ was organised under Major Paul Odgers, who was brought from the Eighth Army Tac HQ for the purpose. De Guingand was disturbed at this; while a Tac HQ was appropriate for a field army commander, he was not so sure that it was the best option for the commander-in-chief of an army group, who should have been able to function from main headquarters. De Guingand failed to convince Montgomery of this. One problem that de Guingand saw was that the most senior officers at Tac HQ were three lieutenant-colonels; the rest were all majors or below. He felt that a more senior officer was required, one that could act in his stead. De Guingand chose Colonel Leo Russell. Although Odgers liked him, Russell had an abrasive personality and no battlefield experience, which made it hard for him to earn the respect of the more operationally experienced officers at Tac HQ. He later came into conflict with Montgomery over the theft of a pig and Montgomery had him removed from Tac HQ. On D-Day, Allied forces secured a lodgement in Normandy, but it was not as deep as planned, and the city of Caen was not captured. The arrangements for British logistics in the Normandy campaign worked well. De Guingand was frustrated by the separation of Main HQ and Tac HQ by the English Channel, which meant that he was no longer in daily face-to-face contact with Montgomery, although the two spoke on a scrambler phone. Main HQ finally moved to Bayeux in the second half of July. For his role in Operation Overlord, de Guingand was further promoted in the Order of the British Empire when he was created a Knight Commander of the Order of the British Empire on 29 June 1944. This was an unusual (although not unprecedented) honour for a temporary major-general, particularly one who still held the substantive rank of major. He was invested with his knighthood in the field by King George VI at Eindhoven on 15 October, along with Lieutenant-Generals Miles Dempsey