The Infanteriebunker Schollberg Süd, also known as Centibunker A6181, is a Swiss military bunker located near the village of Schollberg in the canton of St. Gallen. This hardened infantry shelter was constructed as part of Switzerland's extensive network of fortifications designed to defend the Alpine nation during the Cold War era. The bunker represents the country's policy of armed neutrality and its commitment to maintaining a strong defensive posture throughout the 20th century.
The structure is built into the hillside, featuring reinforced concrete construction typical of Swiss military architecture from this period. Its strategic location provides natural camouflage and protection while offering commanding views of the surrounding valleys and approaches. The bunker would have served as a defensive strongpoint for infantry forces, equipped with firing ports and observation positions to repel potential invaders.
Today, the Infanteriebunker Schollberg Süd stands as a testament to Switzerland's unique military history and its determination to remain an independent, neutral state. While many of these Cold War fortifications have been decommissioned, they continue to interest military historians, urban explorers, and those studying the defensive architecture of the Cold War period.