1899–1947), who is associated with the modernist Humanistic Buddhism trend of Chinese Buddhism. The Communist Cultural Revolution (1966–76) led to the closing of all Buddhist monasteries and widespread destruction of Buddhist institutions. However, since 1977, there has been a general shift in the policy of the communist government, and Buddhist activity, both monastic and lay, has once again been renewed. Korean Buddhism suffered a series of setbacks during the Japanese invasions, occupation, and also during the Korean war. North Korea's harsh government nevertheless offers some limited support to the sangha, but it closely controls all activity. In South Korea, Buddhism underwent a revival, with youth groups being influential and temples being rebuilt with government aid. An example of a recent modern form of Korean Buddhism is Won Buddhism. Central Asia Tibet (which had been a client state of the Qing dynasty) remained a traditional theocratic state (the Ganden Phodrang polity) with the Dalai Lamas as heads of state, from 1912 until the Chinese communist invasion in 1950. The 14th Dalai Lama fled the country in 1959. A Tibetan exile community was established in India, with its center at Dharamsala, which today contains various Buddhist monasteries and is a center for the study of Tibetan Buddhism. The 14th Dalai Lama has become one of the most popular Buddhist leaders in the world today. During the Red Guard period (1966–67), Chinese communists destroyed around 6,000 monasteries in Tibet along with their art and books, an attempt to wipe out the Tibetan Buddhist culture. After 1980, Chinese repression of Tibetan Buddhism has decreased and the situation has improved with the reprinting of the Tibetan Canon and some artistic restoration. In the nearby countries of Bhutan, and Nepal, Vajrayana Buddhism continues to flourish as a major religion. In Mongolia, which also has Tibetan Buddhism as its main religion, communist rule (between 1924 and 1990) saw much repression of Buddhism. However, Buddhism is now undergoing a revival in post-communist Mongolia, with more ordained monks and nuns, and with 284 monasteries since 2009. More recent liberal attitudes towards religion has also benefited the Buddhists of Tuva and Buryatia, as well as the Chinese region of Inner Mongolia. Another modern development was the founding of the Kalmyk Khanate in the 17th century with Tibetan Buddhism as its main religion. During the course of the 18th century, they were absorbed by the Russian Empire as Kalmykia, which remains