You can add Italy to the list. After Premier Benito Mussolini was overthrown on July 25, 1943, following a series of military defeats and heavy Allied bombing, it was hard to find an Italian who would admit to having ever been a Fascist.
In 1954-1958 my father was stationed in Wiesbaden Germany working at United States Air Force Europe (USAFE) Headquarters. There the US government employed many German nationals, a good number being former military. Later my Dad reported that he never met a German who fought on the Western Front.......They all “naturally” fought on the Eastern Front against the Russians!