 Complete the following phrase:  In January 1938, Hibbert was commissioned into the Royal Artillery. On 9 September 1939, less than ten days after the German invasion of Poland, he arrived in Cherbourg, France, with the British Expeditionary Force. In the Battle of Dunkirk, he commanded a half-battery that defended the Allies northern perimeter for four days. On 1 June 1940, his ammunition supply depleted, he was forced to destroy his guns. Evacuated from 