baɪ ɪnfˈɔːɹmɪŋ ˈælaɪd fˈoːɹsᵻz ʌv dʒˈɜːmən mˈuːvmənts bᵻtwˌiːn ðə tˈaʊnz ʌv kˈiːn ænd bˈeɪjuː, hiː kəntɹˈɪbjuːɾᵻd tə ðə səksˈɛs ʌvðə dˈiːdˈeɪ lˈændɪŋz ʌv sˈɪks dʒˈuːn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈoːɹ.
By informing Allied forces of German movements between the towns of Caen and Bayeux, he contributed to the success of the D-Day landings of 6 June 1944.