Phibun's second premiership was notably different, abandoning the fascist styling and rhetoric that characterised his first premiership, and instead promoted a façade of democracy. The beginning of the Cold War saw Phibun align Thailand with the anti-communist camp, and received large quantities of US aid following Thailand's entry into the Korean War as part of the United Nations Command's multi-national allied force against the communist forces of North Korea and the People's Republic of China. Phibun's anti-Chinese campaign was resumed, with the government restricting Chinese immigration and undertaking various measures to restrict economic domination of the Thai market by those of Chinese descent. Chinese schools and associations were once again shut down. Despite open pro-Western and anti-Chinese policies, in the late-1950s Phibun arranged to send two of the children of Sang Phathanothai, his closest advisor, to China with the intention of establishing a backdoor channel for dialogue between China and Thailand. Sirin Phathanothai, aged eight, and her brother, aged twelve, were sent to be brought up under the assistants of Premier Zhou Enlai as his wards. Sirin later wrote "The Dragon's Pearl", an autobiography telling her experiences growing up in the 1950s and 1960s among the leaders of China.