New and extensive Czechoslovak border fortifications were also located in the same area.

The region contained the Czechoslovak border fortifications and means of viable defence against German invasion.

As an ally of France, they were able to get advice on the Maginot design and apply it to Czechoslovak border fortifications.

Thus, they broke their part of the Iron Curtain, the Czechoslovak border fortifications during the Cold War.

The increasing aggressiveness of Hitler prompted the Czechoslovak military to build extensive Czechoslovak border fortifications starting in 1936 to defend the troubled border region.

Pillboxes for the Czechoslovak border fortifications were built before the Second World War in Czechoslovakia in defence against the German invasion of Czechoslovakia.

With Austria in German hands, this part of Czechoslovakia, equipped with a defense system that was larger than the Maginot line (see Czechoslovak border fortifications), was nearly surrounded by Germany.

Some of these are part of the Communist Era defences, some are from the never-used Czechoslovak border fortifications in defence against Hitler, and some towers were, or have become, hunting platforms.

The "Pevnost Kronfelzov" ("Fort Kronfelzov") was one of the biggest projects of the Czechoslovak border fortifications, until works were interrupted by the 1938 Munich Agreement resulting in German occupation.

However, during the 1930s as France built the Maginot Line from the Swiss border to Belgium, and Czechoslovakia built the Czechoslovak border fortifications: Switzerland re-examined its need for fixed defenses.

The hedgehogs were originally used on the Czech-German border by the Czechoslovak border fortifications - a massive but never-completed fortification system built on the eve of World War II by Czechoslovakia.

The official website states that population shrank further in 1950 due to the establishment of the Iron Curtain and the Czechoslovak border fortifications during the Cold War by the ruling Communists, as the whole Aš district was included into the border zone which made many people move out.

The National Redoubt fortifications, when compared to contemporary French, Belgian, German or Czech fortifications, were much more extensive and heavily armed than the Maginot Line, the Belgian border fortifications, the Siegfried Line or the Czechoslovak border fortifications.