No,it was was not only an Italian and German occurrence. In the interwar period, a wide plethora of fascist movements emerged in a Europe, but only in two countries, Italy and Germany, fascism succeeded in attaining absolute state power.The consequences are well know: the abolition of democracy, the genocide of European Jews, the suppression of the working classes, and in the end a rapid acceleration to an imperialist war (WW2). And then we have the reemergence of fascism in the period 1970's-1990's. Le Pen, fascist NPD in Germany, the National front in Britain, the intensification of islamophobia, the war on migrants, boosted by Trump, the emergence of illiberal governments, the authoritarian regime of Putin, the rise of Pegida, a mass racist islamophobic movement initiated by Nazis outside of AFD in 2014, the nazi Erfurt Declaration , the paramilitary nazi organizations developed by the Golden Dawn (Greece) and Jobbik ( Hungary), the interaction of conservatives and fascists, and son on.
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My dear DaVinci, the history of the Spanish civil war was already abundantly discussed in multiple topics, including the German involvement in the Spanish war. For example, here Franco's Mausoleum upsets Spain, again.Wondering why you don't mention the Condor Legion
Only a few people is interested in knowing the history of the European fascism. They are more interested in the Pro-Franco anticommunism, for his glorious fight against the evils of the Soviet communism and the evils of Marxism, rejected by Mussolini.
They will tell you that Nazi Germany, Franco and Mussolini's Christian corporatism (tutto nello Stato, niente al di fuori dello Stato, nulla contro lo Stato) openly supported by the catholic church, they all fought valiantly against the ultimate evil.
They will tell you that the Condor Legion fulfilled their role brilliantly in the obliteration of Guernica, in the support of the francoist advance on Bilbao. Ironically, the strategic main access route to Bilbao remained untouched.