The stated purpose of the ISA was to deter communist activity in Malaysia during the Malayan Emergency and afterwards. The first Prime Minister of Malaysia, Tunku Abdul Rahman, defined the purpose of the act as to "be used solely against the communists...My Cabinet colleagues and I gave a solemn promise to Parliament and the nation that the immense powers given to the government under the ISA would never be used to stifle legitimate opposition and silence lawful dissent". The third Prime Minister, Tun Hussein Onn, stated at the same time that his administration had enforced the act only with a view to curbing communist activity, and not to repress "lawful political opposition and democratic citizen activity".