No sooner had the War Cabinet given reluctant and conditional assent to the Flanders operation, than Lloyd George tried different means to prevent Haig from carrying it out, lobbying instead for his Italian scheme. His big opportunity came when he crossed the Channel on July 22, along with Robertson and several members of the War Cabinet, to attend an inter-Allied conference in Paris. Before the start of the conference, he visited Painlevé and dined with his old friend, Albert Thomas. He advanced his case for concentration on the Italian front and, while they were attentive and sympathetic, they remained noncommittal.

Robertson, for his part, had no idea that Lloyd George was planning to rally the French authorities to his peripheral strategy. His first intimation of Lloyd George's machinations came when he, Foch, Pétain and Cadorna were asked to advise on the feasibility of sending assistance to Italy. By now, nothing that Lloyd George did should have surprised Robertson. At the gathering, Robertson persuaded the generals that it was folly to flip from one war plan to another and that the only sensible thing to do was to allow the existing arrangements to stand. It was agreed by all that the dispatch of Anglo-French troops to the Italian front should be considered only after the battle in Flanders was over and its results assessed.