Parliament of Singapore was allocated 15 out of 127 seats. Under its new State Constitution, Singapore kept its own executive government and legislative assembly. However, with effect from 9 August 1965, Singapore left Malaysia and became a fully independent republic. On separation from Malaysia, the Singapore Government retained its legislative powers, and the Parliament of Malaysia gave up all power to make laws for Singapore. Similarly, the Republic of Singapore Independence Act 1965, passed on 22 December 1965 and made retrospective to 9 August, declared that the legislative powers of the Yang di-Pertuan Agong (Supreme Head of the Federation) and Parliament of Malaysia
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