He chose a diplomatic career in the Near East because "James Elroy Flecker|[James Elroy] Flecker, whose poetry I had loved in my school days, had been in the
Levant Consular Service", and owing to "a liking for travel and oriental philology". During 1933, Wall was posted initially as Probationer Vice-Consul at
Beirut,
Lebanon. Subsequently, he was stationed at
Jeddah in Saudi Arabia,
Tabriz and
Esfahan in Iran, and
Casablanca in Morocco. He was posted as the first
Political Agent to the Trucial States in Dubai following the relocation of the seat of British representative from
Sharjah to Dubai in 1953. After
WWII, he was Counsellor at the British Middle East Office in
Cairo until 1952. He was British Ambassador to Paraguay 1957–1958 and Consul-General at Alexandria 1963–1965. He was honoured in 1953 as a Companion of the Order of St Michael & St George for his diplomatic work. Wall continued to work for the
Foreign Office, at first in a teaching position in London, 1966–1970, and then at the
Government Communications Headquarters, a secret surveillance centre, in
Cheltenham. Wall retired from the Foreign Office during 1977, and retired to
Monmouthshire. ==Literary works==