On the site of the municipality used to be a former Prussian parade ground for cavalry and infantry, the "Gönnebeker Heide".

In July 1934, the naval command in Berlin ordered the construction of a new minefield near Kiel.

This mine storage facility was intended to relieve the pressure on the barrage depot in Kiel-Dietrichsdorf.

The Halloh forest to the south of Boostedt was not chosen as the terrain available at the time was not suitable: the trees in this area were too sparse, the ground too uneven and it was a popular destination for excursions for the people of Neumünster.

In 1940, however, the air munitions station 6/XI Boostedt was set up at another location in Halloh Forest.