Romania ( (listen) roh-MAY-nee-; Romanian: Romnia [romni.a] (listen)) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, and the Black Sea to the southeast. It has a predominantly temperate-continental climate, and an area of 238,397 km2 (92,046 sq mi), with a population of around 19 million. Romania is the twelfth-largest country in Europe and the sixth-most populous member state of the European Union. Its capital and largest city is Bucharest, and other major urban areas include Iai, Cluj-Napoca, Timioara, Constana, Craiova, Braov, and Galai.

The Danube, Europe's second-longest river, rises in Germany's Black Forest and flows in a southeasterly direction for 2,857 km (1,775 mi), before emptying into Romania's Danube Delta. The Carpathian Mountains, which cross Romania from the north to the southwest, include Moldoveanu Peak, at an altitude of 2,544 m (8,346 ft).Romania was formed in 1859 through a personal union of the Danubian Principalities of Moldavia and Wallachia. The new state, officially named Romania since 1866, gained independence from the Ottoman Empire in 1877. During World War I, after declaring its neutrality in 1914, Romania fought together with the Allied Powers from 1916. In the aftermath of the war, Bukovina, Bessarabia, Transylvania, and parts of Banat, Criana, and Maramure became part of the Kingdom of Romania. In JuneAugust 1940, as a consequence of the MolotovRibbentrop Pact and Second Vienna Award, Romania was compelled to cede Bessarabia and Northern Bukovina to the Soviet Union and Northern Transylvania to Hungary. In November 1940, Romania signed the Tripartite Pact and, consequently, in June 1941 entered World War II on the Axis side, fighting against the Soviet Union until August 1944, when it joined the Allies and recovered Northern Transylvania. Following the war and occupation by the Red Army, Romania became a socialist republic and a member of the Warsaw Pact. After the 1989 Revolution, Romania began a transition towards democracy and a market economy.

Romania is a developing country with a high-income economy, ranking 49th in the Human Development Index. It has the world's 47th largest economy by nominal GDP. Romania experienced rapid economic growth in the early 2000s; its economy is now based predominantly on services. It is a producer and net exporter of machines and electric energy through companies like Automobile Dacia and OMV Petrom. Romania has been a member of the United Nations since 1955, NATO since 2004 and the European Union (EU) since 2007. The majority of Romania's population are ethnic Romanian and religiously identify themselves as Eastern Orthodox Christians, speaking Romanian, a Romance language. The Romanian Orthodox Church is the largest and traditional church of the country.

Communism (from Latin communis, 'common, universal') is a philosophical, social, political, and economic ideology and movement whose goal is the establishment of a communist society, namely a socioeconomic order structured upon the ideas of common or social ownership of all property and the absence of social classes, money, and the state. Communism is a specific, yet distinct, form of socialism. Communists agree on the withering away of the state but disagree on the means to this end, reflecting a distinction between a more libertarian approach of communization, revolutionary spontaneity, and workers' self-management, and a more vanguardist or Communist party-driven approach through the development of a constitutional socialist state.Variants of communism have been developed throughout history, including anarcho-communism and Marxist schools of thought. Communism includes a variety of schools of thought which broadly include Marxism, Leninism, and libertarian communism as well as the political ideologies grouped around both, all of which share the analysis that the current order of society stems from capitalism, its economic system and mode of production, namely that in this system there are two major social classes, the relationship between these two classes is exploitative, and that this situation can only ultimately be resolved through a social revolution. The two classes are the proletariat (the working class), who make up the majority of the population within society and must work to survive, and the bourgeoisie (the capitalist class), a small minority who derives profit from employing the working class through private ownership of the means of production. According to this analysis, revolution would put the working class in power and in turn, establish common ownership of property which is the primary element in the transformation of society towards a communist mode of production.In the 20th century, Communist governments espousing Marxism–Leninism and its variants came into power in parts of the world, first in the Soviet Union with the Russian Revolution of 1917, and then in portions of Eastern Europe, Asia, and a few other regions after World War II. Along with social democracy, communism became the dominant political tendency within the international socialist movement by the 1920s. Criticism of communism can be divided into two broad categories, namely that which concerns itself with the practical aspects of 20th century Communist states and that which concerns itself with communist principles and theory. Several academics and economists, among other scholars, posit that the Soviet model under which these nominally Communist states in practice operated was not an actual communist economic model in accordance with most accepted definitions of communism as an economic theory but in fact a form of state capitalism, or non-planned administrative-command system.