Support point TROU21 by , KilroyTrip 5 See on map A photo s?? The German strongpoint coded TROU 21 a short distance from 20 was also made up of two bunkers of type 141. The German strongpoint coded TROU 21 a short distance from 20 was also made up of two bunkers of type 141. Read Route Tags : trouville-sur-mer calvados normandie murdelatlantique atlanticwall bunker todt