Complex sentence: In 1958 he transferred to New York as Commercial Consul, Moscow, Tehran and finally Sofia, as Ambassador of the United Kingdom to Bulgaria where Cloake was in charge of the UK's diplomatic mission in Sofia between 1976 and 1980.
Split into simpler sentences: In 1958 he transferred to New York as Commercial Consul. He then worked in Moscow, in Tehran and finally in Sofia as Ambassador of the United Kingdom to Bulgaria where he was in charge of the UK's diplomatic mission between 1976 and 1980.