Wilfried, would you call Der Abenteurer a soldiers song or is there still another song I don't know yet which was sung to the tune of 'Die Fahne hoch...'?By the way, not just the whole song is forbidden to sing/play/print or whatever in Germany, also the tune alone or (depending upon context, of course) even the tune with other lyrics. Though I have yet to hear of somebody being fined for singing 'Der Abenteurer'.
Wolfgang