Area 52? or Putlos, a training place for the Bundeswehr (German Army) located in the district of Ostholstein in Schleswig-Holstein. and the only German practice place with coast connection. Although it is a rather small exercise area with a land area of ​​only 12.5 km², the safety area at sea, which belongs to the place, covers an area of ​​approx. 486 km².