Rhodesia
The official name of the country under British law was "Southern Rhodesia", but the government in Salisbury used the name "Rhodesia" instead. This situation dated back to October 1964, when the colony of Northern Rhodesia changed its name to Zambia following independence,  so the colonial government felt that "Southern" Rhodesia should no longer be used because there was no "Northern" Rhodesia. However, Britain believed that only their government could change the colony's name and not the colony itself.