1951. Moreover, even during the periods of nominal subjugation to the Yuan and Qing, Tibet was largely self-governing. As such, the Central Tibetan Administration (CTA) views current PRC rule in Tibet as illegitimate, motivated solely by the natural resources and strategic value of Tibet, and in violation of both Tibet's historical status as an independent country and the right of the Tibetan people to self-determination. It also points to PRC's autocratic and divide-and-rule policies, and assimilationist policies, regarding those as an example of imperialism bent on destroying Tibet's distinct ethnic makeup, culture, and identity, thereby cementing it as an indivisible part of China. After the fall of the Qing Dynasty, both Mongolia and Tibet declared independence and recognized each other as such. On the other hand, opponents assert that the PRC rules Tibet legitimately, by saying that Tibet has been part of Chinese history since the 7th century as the Tibetan Empire had close interactions with the Chinese dynasties through royal marriage. In addition to the de facto power that the Chinese has since then, Yuan Dynasty conquest in the 13th century and that all subsequent Chinese governments (Ming Dynasty, Qing Dynasty, Republic of China, and People's Republic of China) have been exercising de jure sovereignty power over Tibet. In addition, as this position argues that no country gave Tibet diplomatic recognition between 1912 and 1950, they say that China, under the Republic of China government, continued to maintain sovereignty over the region, and the leaders of Tibet themselves acknowledged Chinese sovereignty by sending delegates to the following: the Drafting Committee for a new constitution of the Republic of China in 1925, the National Assembly of the Republic of China in 1931, the fourth National Congress of the Kuomintang in 1931, the , which drafted a new Chinese constitution in 1946, and finally to another National Assembly for drafting a new Chinese constitution in 1948. Finally, some within the PRC considers all movements aimed at ending Chinese sovereignty in Tibet, starting with the expedition of 1904, to the CTA today, as one interconnected campaign abetted by malicious Western powers aimed at destroying Chinese integrity and sovereignty, thereby weakening China's position in the world. The PRC also points to what it calls the autocratic and theocratic policies of the government of Tibet before 1959, as well as its renunciation of South Tibet, claimed by China as a part of historical Tibet