Indianised kingdoms such as the Mon, the Khmer Empire and Malay states of the Malay Peninsula and Sumatra had ruled the region. The Thai established their own states: Ngoenyang, the Sukhothai Kingdom, the Kingdom of Chiang Mai, Lan Na and the Ayutthaya Kingdom. These states fought each other and were under constant threat from the Khmers, Burma and Vietnam. Much later, the European colonial powers threatened in the 19th and early 20th centuries, but Thailand survived as the only Southeast Asian state to avoid European colonial rule because the French and the British decided it would be a neutral territory to avoid conflicts between their colonies. After the end of the absolute monarchy in 1932, Thailand endured sixty years of almost permanent military rule before the establishment of a democratically elected-government system. In 2014 there was a coup d'état.