Concurrent powers are powers<span> in nations with a federal system of government that are shared by both the federal government and each constituent political unit such as a state or provence</span>
The correct answer is that international volunteers fought on the Republican side in the Spanish Civil War.
The Republican side was formed around the Government, formed by the Popular Front, which in turn was composed of a coalition of Republican parties - Republican Left and Republican Union - with the Spanish Socialist Workers Party, which had joined the Marxists - Leninists of the Communist Party of Spain and the POUM, the Syndicalist Party of anarchist origin and in Catalonia the left nationalists led by Esquerra Republicana de Catalunya. It was supported by the labor movement and the UGT and CNT unions, which also pursued the social revolution. The Basque Nationalist Party had also opted for the republican side, when the republican courts were about to approve the Statute of Autonomy for the Basque Country.
Although it received hardly any external support from the allied powers of the Second World War, due to the International Non-Intervention Committee, the support of the USSR, which together with Mexico together with France and Poland at the beginning of the contest, stand out; they contributed large quantities of military equipment and advisors, notoriously also the support of what were called the International Brigades.
At 1950s it was different then today today we have many things at 1950s they didn't have many things they didn't have cars things were different then today today it's change it's not 1950s
The southern colonies (and the colonies in the Caribbeans) required slave labor and indentured servants to maintain plantations that grew valuable crops such as sugar canes and tobacco. Harvesting these crops were often labor intensive that many free workers were unwilling to do without high wages that plantation owners did not wish to pay. These crops could only be grown in the south (or the Caribbean) due to the soil and climate.
Macedonia, Asia minor, Palestine, and Persia