Complex sentence: In Switzerland, pro-Nazi Colonel Arthur Fonjallaz of the National Front became an ardent Mussolini admirer after visiting Italy in 1932 and advocated the Italian annexation of Switzerland, whilst receiving Fascist foreign aid.
Split into simpler sentences: In Switzerland, a pro-Nazi Colonel Arthur Fonjallaz of the National Front, became an ardent Mussolini admirer after visiting Italy in 1932. He advocated the Italian annexation of Switzerland, whilst receiving Fascist foreign aid.