Pretty much all the time. With the notable exception of Czechoslovakia, just about every country in central Europe and the Balkans during the late 1930's and 1940's were basically fascist (conservative, nationalistic, autocracies), perhaps with (like Italy) the pretense of being monarchies as well. While not all of them could be called doctrinaire fascist, they were all more ideologically aligned with fascism than either western democrarcy or Soviet communism. All of these nations were attacked by Germany and/or Italy, and they also fought with each other.