Infantry block house MO-S 21,,U Jaroš,,

Czechoslovakia began to prepare against the anticipated attack by Germany by building fortifications to defend the borders of its republic. The buildings were built in the years 1935 - 1938. All the buildings were not completely finished and fully armed, the army was nevertheless determined to defend Czechoslovakia's independence from Nazi Germany at all costs. After the Munich Agreement on September 30, 1938…