There are no European countries that are completely socialist.
Yes
This question is based on a false premise. The European union has not promoted the establishment of socialist economies in member nations. There are no members of the European Union which have socialist economies. All members have capitalist economies.
The Union of Soviet Socialist Republics
i don know
Socialist Union Party was created in 1939.
Socialist Union Party ended in 1941.
Socialist Youth Union was created in 1921.
Socialist Union of America was created in 1953.
Socialist Union of America ended in 1959.
Socialist-Communist Union was created in 1923.
Socialist-Communist Union ended in 1932.
Patriotic Socialist Union was created in 2007.
Gabonese Socialist Union was created in 1991.