School in Luumaki

Town school is on the photo. Only part of the school is present on the picture, because the building is very large and I think this is the most big and important building in the area. That is right.
Back to fortifications: I've read Bismark's sentence about Franks-Prussian war of 1870-1871. He said that war was wined by "German school  teacher". The force of sentence is a more high educational background of German soldiers in comparison of their French opponents. So, this building may be the main fortification installation of Luumaki area?