During the Second World War there were multiple people from Allied countries that deserted to the Axis powers. Actually, there are too many to name them all. Some of them ended up working propaganda jobs, and the ‘American-Germans that travelled to Germany to defend the Reich’ was of course immortalised by the (fictional) scene in Band of Brothers. But all these people generally deserted before there was a full-fledged war between the United States and Germany. Let alone when it became obvious that Germany was going to lose the war. Well, not Martin James Monti.
Playing a bit of bluff he ended up in German-held territory in Europe, joined the SS propaganda unit and even fought on the German side. But what makes the case perhaps even more strange is that all this happened in late October 1944, when it was evident to nearly everyone that Germany would lose the war.