as "Bill 101". Martial law was declared in the Philippines on September 21, 1972, by dictator Ferdinand Marcos. In Cambodia, the communist leader Pol Pot led a revolution against the American-backed government of Lon Nol. On April 17, 1975, Pot's forces captured Phnom Penh, the capital, two years after America had halted the bombings of their positions. His communist government, the Khmer Rouge, forced people out of the cities to clear jungles and establish a radical, Marxist agrarian society. Buddhist priests and monks, along with anyone who spoke foreign languages, had any sort of education, or even wore glasses were tortured or killed. As many as 3 million people may have died. Vietnam invaded the country at the start of 1979, overthrowing the Khmer Rouge and installing a satellite government. This provoked a brief, but furious border war with China in February of that year. The Iranian Revolution of 1979 transformed Iran from an autocratic pro-Western monarchy under Shah Mohammad Reza Pahlavi to a theocratic Islamist government under the leadership of Ayatollah Ruhollah Khomeini. Distrust between the revolutionaries and Western powers led to the Iran hostage crisis on November 4, 1979, where 66 diplomats, mainly from the United States, were held captive for 444 days. Growing internal tensions take place in Yugoslavia beginning with the Croatian Spring movement in 1971 which demands greater decentralization of power to the constituent republics of Yugoslavia. Yugoslavia's communist ruler Joseph Broz Tito subdues the Croatian Spring movement and arrests its leaders, but does initiate major constitutional reform resulting in the 1974 Constitution which decentralized powers to the republics, gave them the official right to separate from Yugoslavia, and weakened the influence of Serbia (Yugoslavia's largest and most populous constituent republic) in the federation by granting significant powers to the Serbian autonomous provinces of Kosovo and Vojvodina. In addition, the 1974 Constitution consolidated Tito's dictatorship by proclaiming him president-for-life. The 1974 Constitution would become resented by Serbs and began a gradual escalation of ethnic tensions. Coups The most prominent coups d'état of the decade include: 1970 – Coup in Syria, led by Hafez al-Assad. 1971 – Military coup in Uganda led by Idi Amin. 1973 – Coup d'état in Chile on September 11th, Salvador Allende was overthrown and killed in a military attack on the presidential palace. Augusto Pinochet takes power backed by the military junta. 1974 – Military coup in Ethiopia led to the