[3] He graduated with a Master of Arts from the University of Cambridge and spent a couple of years as a school-master in North Wales before returning to Australia.[8] In March 1950 Deschamps presented his credentials as the head of the Australian Military Mission in Berlin to the three Allied High Commissioners at Bonn.[9] In January 1952, Deschamps was appointed Charge d'Affaires in West Germany to open up the Australian embassy in Bonn.[10][11][12] While Australian Ambassador to Cambodia (1962–1969) Deschamps also represented the interests of the United States in the country after King Norodom Sihanouk broke off diplomatic ties with Washington.[13] Deschamps became a friend of Sihanouk's and the Ambassador was awarded a high Cambodian decoration to mark the close relationship between Australia and Cambodia.