Self-governance of Singapore relieving it of colonial rule and becoming an autonomous state within the Malaysian federation. After a fallout in the relations between the United Malays National Organisation (UMNO) and the People's Action Party (PAP), the ruling parties of the Federation and Singapore respectively, full independence came about with Singapore's expulsion from Malaysia in 1965. Following the end of the Japanese occupation of Singapore during World War II, the British returned to power in Singapore. On 1 April 1946, the Straits Settlements was dissolved and Singapore became a separate Crown colony with a civil administration headed by a Governor. In July 1947,
Federation independence from the sovereign state, which only takes care of their foreign relations and defence. However, they are neither considered to be part of it, nor recognised as sovereign or associated states. The distinction between a federation and a unitary state is often quite ambiguous. A unitary state may closely resemble a federation in structure and, while a central government may possess the theoretical right to revoke the autonomy of a self-governing region, it may be politically difficult for it to do so in practice. The self-governing regions of some unitary states also often enjoy greater autonomy than those of