Academic interest has also focused on the movement's relationship with Mao's personality. Mao envisioned himself as a wartime guerrilla leader, which made him wary of the bureaucratic nature of peacetime governance. With the Cultural Revolution Mao was simply "returning to form", once again taking on the role of a guerrilla leader fighting against an institutionalized party bureaucracy. Roderick MacFarquhar and Michael Schoenhals, paint the movement as neither a "bona fide" war over ideological purity "nor" a mere power struggle to remove Mao's political rivals. While Mao's personal motivations were undoubtedly pivotal to the Cultural Revolution, they reasoned that other complex factors contributed to the way events unfolded. These include China's relationship with the global Communist movement, geopolitical concerns, the ideological rift between China and the Soviet Union, Khrushchev's ouster, and the failures of the Great Leap Forward. They conclude that the movement was, at least in part, a legacy project to cement Mao's place in history, aimed to boost his prestige while he was alive "and" preserve the invulnerability of his ideas after his death.