After the Federation, the question of a flag for (Southern) Rhodesia again arose.
After the breakup of the Federation of Rhodesia and Nyasaland (when Southern Rhodesia joined the British protectorates of Northern Rhodesia and Nyasaland between 1953 - 1963) Northern Rhodesia became the independent republic of Zambia and Nyasaland became Malawi under African leadership during 1964. Rhodesia (having dropped the "Southern") wanted independence on the same lines but the British Government refused on the basis that not enough was being done regarding the political advancement of the African population.
After the demise of the Federation, the question of a distinctive flag for (Southern) Rhodesia again arose and in April 1964 the then Prime Minister, Mr Winston Field, stated in parliament that the new flag of the colony would be "an Ensign with a sky blue background (the same colour as appears on the Air Force flag) with the Union Jack in the top left-hand corner and the Southern Rhodesia badge in the fly". The main motivation for adopting the light blue background, as opposed to the traditional dark blue, was that it was felt that a clear break had to be made from the situation before and during the Federal period, which most white Rhodesians felt very emotional about, particularly their perceived poor treatment by the British government during the dissolution of the Federation.
Unlike with the previous Southern Rhodesia dark blue and red ensigns used between 1923 and 1953, this version always had the shield placed directly in the fly without a disc.The Rhodesian national flag from 08 April 1964 until 11 November 1968, was in the style of a British ensign with the Rhodesian badge in the fly. Rather than the dark blue ensign commonly used by Commonwealth countries or British colonies, such as those used by Australia or colonial Hong Kong, the field of the Rhodesian flag was light blue or sky blue, similar to that used on the Royal Air Force ensign or the flags of Fiji or Tuvalu.