india
China was ruled by the so-called Communist Party after 1949, but it was not a Communist country. Communism means the abolition of the wages system and establishment of a classless society. China became state capitalist after 1949.
Cuba became communist with the revolution of Castro.
Castro was a communist so Cuba became a communist country.
China
East Germany
China
Czechoslovakia
Russia. They became communist during Lenin's reign.
According to experts, the west African country of Mali became independent of France in 1960 and later became a part of the Central African Republic.
Russia was the only country to become communist during World War 1.
Vietnam became one communist country.