Lin joined the [[Chinese Communist Party]] in 1927, took part in the [[Long March]] of 1934-35, and had played a major role in the communist victory in the [[Chinese Civil War]]. In 1959, following the disgrace and dismissal of [[Peng Dehuai]], he was made Minister of Defence and Commander-in-Chief of the [[People's Liberation Army]]. He was responsible in the 1960s for the publication of the '[[Little Red Book]]' ('Quotations from Chairman Mao Zedong'), and when the [[Cultural Revolution]] began in 1966 was a firm supporter of [[Mao Zedong]] and [[Jiang Qing]].
In the late 1960s Lin was openly described as Mao's deputy and heir, but the ageing Mao was growing increasingly paranoid and took offence at Lin's attempts in 1970 to persuade Mao to fill the position of Chairman of the People's Republic of China (ie i.e. titular head of state) which had been vacant ssince the fall of [[Liu Shaoqi]] and which Mao sought to abolish in a redrafting of the Chinese constituation. Relations between the two men deteriorated and what happened in the last days of Lin's life remains unclear.
What is known is that on 13 September 1971 Lin, his wife, and his son Lin Liguo, a senior air force general, fled their holiday home at Beidaihe in [[Hebei]] province to a nearby air force base, comandeered commandeered a VC10 aircraft and flew to the north west, towards the USSR, where Lin had solid contacts having spent much of the Second World War years there. It seems that the plane had not been fully fuelled, and it crashed in Mongolia killing all on board.
The official Chinese version of events is that Lin and his son had been plotting a [[coup d'état]] against Mao called 'Plan 571' (in Chinese, the numbers 571 are spoken wu-qi-yi, which can also mean 'armed uprising'); and it was alleged that air force aircraft had mounted an unsuccessful attack against Mao's personal train. Lin's daughter, Lin Doudou, revealed the plot to prime minister [[Zhou Enlai]], whereupon the plotters fled.