The London Declaration was a declaration issued by the 1949 Commonwealth Prime Ministers' Conference on the issue of India's continued membership in the Commonwealth of Nations after its transition to a republican constitution. It was made in London on 28 April 1949 and marked the birth of the modern Commonwealth. The declaration had two main provisions: It allowed the Commonwealth to admit and retain members that were not Dominions, so including both republics and indigenous monarchies, and it changed the name of the organisation from the British Commonwealth to the Commonwealth of Nations, reflecting the first change. The Declaration recognised King George VI as Head of the Commonwealth. Following his death, the Commonwealth leaders recognised Queen Elizabeth II in that capacity.
The former term included the device of terminology that would reflect both the developing political independence and the right of countries in the Commonwealth to be republics and the commonality of allegiance that was the cornerstone of the Balfour Declaration of 1926 and the Statute of Westminster 1931. This proved to be a major stumbling block, until a compromise position was proposed by the Canadian Prime Minister Louis St. Laurent, who planned a position of Head of the Commonwealth, separate but held by the same person as the monarch.
The declaration stated vis-à-vis India:
This formula has since been deemed to be a sufficient precedent for all other countries.
The issue had been discussed at the 1948 Prime Ministers Conference, the agenda of which was dominated by the imminent decisions of two states—India and Ireland—to declare themselves republics. At the meeting, Indian Prime Minister Jawaharlal Nehru proposed a Ten Point Memorandum on the settlement between India and the Commonwealth. The Cabinet Committee on Commonwealth Relations recognised that Nehru's proposals could not constitute a basis for continued Commonwealth membership, and that a further conference would be required.