After the collapse of the Soviet Union
  
   
Communists  marching in France on May 1, 2007
   In 1985, Mikhail  Gorbachev became leader of the Soviet Union and relaxed central control, in  accordance with reform policies of glasnost (openness) and perestroika (restructuring). The Soviet Union did  not intervene as Poland, East Germany, Czechoslovakia, Bulgaria, Romania, and Hungary all abandoned Communist rule by 1990. In 1991,  the Soviet Union itself dissolved.
 By the beginning of the 21st century, states controlled by Communist parties  under a single-party system include the People's Republic of China, Cuba, Laos,  North Korea, and Vietnam. Communist parties, or their  descendant parties, remain politically important in many countries. President Vladimir Voronin of  Moldova is a member of the Party of Communists  of the Republic of Moldova, but the country is not run under single-party  rule. In South Africa, the  Communist Party is a partner in the ANC-led government. In India, as  of 2007, the national government relies on outside support from the  communist parties and communists lead the governments of three states, with a combined  population of more than 115 million. In Nepal, communists hold a majority in the interim parliament.
 The People's Republic of China has reassessed many aspects of the Maoist  legacy; and the People's Republic of China, Laos, Vietnam, and, to a far lesser  degree, Cuba have reduced state control of the economy in order to stimulate  growth. The People's Republic of China runs Special Economic Zones dedicated to  market-oriented enterprise, free from central government control. Several other  communist states have also attempted to implement market-based reforms,  including Vietnam. Officially, the leadership of the People's Republic of China  refers to its policies as "Socialism with Chinese  characteristics."
 Theories within Marxism as to why communism in Eastern Europe was not  achieved after socialist revolutions pointed to such elements as the pressure of  external capitalist states, the relative backwardness of the societies in which  the revolutions occurred, and the emergence of a bureaucratic stratum or class  that arrested or diverted the transition press in its own interests. (Scott and  Marshall, 2005) Marxist critics of the Soviet Union, most notably Trotsky,  referred to the Soviet system, along with other Communist states, as "degenerated" or "deformed  workers' states," arguing that the Soviet system fell far short of Marx's  communist ideal and he claimed working class was politically dispossessed. The  ruling stratum of the Soviet Union was held to be a bureaucratic caste, but not a new ruling class, despite their  political control. They called for a political revolution in the USSR and  defended the country against capitalist restoration. Others, like Tony Cliff, advocated the theory  of state  capitalism, which asserts that the bureaucratic elite acted as a surrogate  capitalist class in the heavily centralized and repressive political  apparatus.
 Non-Marxists, in contrast, have often applied the term to any society ruled  by a Communist Party and to any party aspiring to create a society similar to  such existing nation-states. In the social sciences, societies ruled by  Communist Parties are distinct for their single party control and their  socialist economic bases. While anticommunists applied the concept of "totalitarianism" to these  societies, many social scientists identified possibilities for independent  political activity within them, and stressed their continued evolution up to the  point of the dissolution of the Soviet Union and its allies in Eastern Europe  during the late 1980s and early 1990s.[25][26]
 Today, Marxist revolutionaries are conducting armed insurgencies in India, Philippines, Iran, Turkey, and  Colombia.