Self-governance of Singapore which were ethnically and religiously defined. The PAP called for a Malaysian Malaysia, that favoured all Malaysians, rather than specific ethnic groups. Singapore was also required to pay the Federal Government a large percentage of its budget, money which would not be necessarily returned as services towards Singapore. At the same time, free trade was not granted between Singapore and other states of Malaysia. Following these difficulties, Lee Kuan Yew reluctantly signed a separation agreement on 7 August, after the Parliament of Malaysia voted for Singapore's expulsion from the Federation. Singapore officially left Malaysia on 9 August 1965. Self-governance of
Federation in practice highly centralized under the government of the Soviet Union. The Russian Federation has inherited a similar system. Nigeria, Pakistan, India and Malaysia became federations on or shortly before becoming independent from the British Empire. In some recent cases, federations have been instituted as a measure to handle ethnic conflict within a state, such as Bosnia and Herzegovina, and Iraq since 2005. With the United States Constitution having become effective on 4 March 1789, the United States is the oldest surviving federation. On the other end of the timeline is Nepal, which became the newest federation after its constitution