As a country, only the Soviet Union sent aid. However, many foreigners went to Spain to fight for the Republic but they were not sponsored by their governments. The Americans formed the Lincoln Brigade.
Spain - the Republicans and the Nationalists
it is a throwback/ in homage to the "red" communists in Russia
the war was between the Republicans and the nationalists
Republicans who openly disagreed with Lincoln's policies were called Radicals during the Civil War.
The Spanish Civil War was in the late 1930's
The Spanish civil war lasted from 1936 to 1939.
Italy Germany
The Congress
Republicans
It was an internal War, however Germany and Italy both supported Franco and the Nationalists and the Soviet Union sided with the Republicans.
Italy
The Republicans