 He assisted the Free French forces by arranging a drop of arms, assisting them to liberate French villages, and encouraging them to prevent the Germans from withdrawing across the Rhône.He received a "Croix de Guerre" for his activities in France.Back in Britain in September 1944, Hallowes joined SOE's Special Planning Unit 22, to consider the feasibility of sending German-speaking SOE operatives (particularly Poles and former German prisoners of war) into German territory.