The decision about the construction on the site was taken in autumn 1940. The following considerations had decided about the location of the headquarters right here: closeness to the former Soviet Union border of the Kętrzyn forest /this had an important psychological meaning (the Barbarossa plan foresaw an attack against the Soviet Union)/, East Prussia was one of the most fortified districts of the Third Reich, there were many fortresses in this area (Giżycko, Toruń, Kłajpeda, Pilawa) and there were also the so called 'fortified areas' with entrenchments and barbed wire.

The area selected for the headquarters was located far from major roads in an old forest which formed a natural shield all year round. Also the Great Mazurian Lakes were a natural barrier against land troops.

The stated in many guide books overall number of employees /3000 to 5000 / seems to be severely underestimated. Prof. F. Seidler in the monograph about F.Todt says that in programming assumptions the construction of the main field at Hitler's headquarters projected to hire 50 thousand workers (20, p. 352). Peter Hoffmann in a letter to the author of this guide indicates that on 20 July 1944 (the day of the attack on Hitler) about 5 thousand labourers worked in the headquarters. The author of this publication - despite the widely circulated rumours about hiring prisoners of war and forced labourers - didn't find any documents confirming that opinion.