Then on 29 May Brooke was ordered by Gort to return to England, leaving the Corps in Montgomery's hands. According to Montgomery, Brooke was so overcome with emotion at having to leave his men in such a crisis that "he broke down and wept" as he handed over to Monty on the beaches of La Panne. He was told by Gort to "proceed home ... for (the) task of reforming new armies" and so returned on a destroyer (30 May). Then "on June 2nd set out for the War Office to find out what I was wanted for" with a "light heart" and with no responsibility, and was then told by Dill (CIGS) that he was to "Return to France to form a new BEF"; he later said that hearing the command from Dill was "one of his blackest (moments) in the war". He had already realised that there was no hope of success for the "Brittany plan" (Breton redoubt) to keep an allied redoubt in France. He told the Secretary for War (Eden) that the mission had "no military value and no hope of success" although he could not comment on its political value. In his first conversation with Prime Minister Winston Churchill (Brooke had been rung by Dill who was at 10 Downing Street) he insisted that all British forces should be withdrawn from France. Churchill initially objected but was eventually convinced by Brooke and around 200,000 British and Allied troops were successfully evacuated from ports in northwestern France.